One Price. Zero Surprises. Shipping Included
-25%

12/16mm External CO2 Diffuser & Reactor

Original price was: $40.65.Current price is: $30.49.
12mm inside pipe use
16mm inside pipe use
FREE 4-Day Delivery
If you order within 2 hours 0 mins
Arrives by Thursday, Sep 11
Estimated Delivery:
07 - 14 Sep, 2025
1662056
Trust Badge
Guaranteed safe & secure checkout

Description

Enhance Your Aquarium’s Growth with Precision CO2 Diffusion

Unlock the full potential of your planted aquarium with our 12/16mm External CO2 Diffuser & Reactor. Designed to deliver optimal carbon dioxide levels, this all-in-one solution ensures your aquatic plants receive the CO2 they need for vibrant growth and health. Whether you’re a beginner or an experienced aquarist, this CO2 diffuser will take your aquarium to the next level, creating a lush, thriving underwater ecosystem.

Key Features

Our CO2 diffuser is packed with features that make it an essential tool for any planted tank:

  • High-Quality Materials: Crafted from durable aluminum alloy and glass, ensuring long-lasting performance.
  • Integrated Bubble Counter: Built-in bubble counter allows for precise CO2 measurement, ensuring your plants receive the exact amount they need.
  • Check Valve Function: Prevents water from backflowing into your CO2 system, adding an extra layer of protection.
  • Space-Saving Design: Compact and lightweight, this diffuser seamlessly integrates into your setup without taking up valuable space.
  • Efficient CO2 Dissolution: Ensures CO2 is effectively dissolved and distributed throughout the aquarium, reaching every corner for maximum plant absorption.
  • Multiple Sizes Available: Compatible with 12/16mm or 16/22mm pipe diameters, making it versatile for various tank setups.

Why Choose Our CO2 Diffuser?

This CO2 diffuser is more than just a simple accessory; it’s a game-changer for your aquarium. By delivering precise amounts of CO2 directly to your plants, it promotes stronger root systems, greener foliage, and faster growth. The integrated bubble counter takes the guesswork out of CO2 dosing, while the check valve function protects your equipment from potential damage. Whether you’re cultivating a delicate carpet of aquatic plants or maintaining a vibrant coral reef, this diffuser will enhance the beauty and health of your tank.

Perfect for Planted Aquariums and Coral Reef Tanks

Our diffuser is ideal for both freshwater planted tanks and saltwater coral reef tanks. In freshwater setups, it ensures your plants receive the CO2 they need for photosynthesis, resulting in lush, green growth. In coral reef tanks, it helps maintain optimal CO2 levels, supporting the overall health of your corals. The compact design allows it to fit seamlessly into your existing setup, making it a versatile choice for any aquarist.

Experience the Difference Today

Don’t let your plants struggle to grow—provide them with the CO2 they need to thrive. Order our 12/16mm External CO2 Diffuser & Reactor today and watch your aquarium transform into a lush, vibrant paradise. Your aquatic plants and corals will thank you!

Rating & Review

Based on 9 Reviews
  1. Letha Orn

    wow just wow!!!

  2. Vivienne Hand

    I’m really impressed with how efficient this device is at distributing CO2 evenly throughout the tank.

  3. Roger Schinner

    Never have I come across such an efficient yet unobtrusive piece of equipment for my beloved aquarium until now! This external CO2 diffuser/reactor has completely transformed not just the aesthetic appeal but also improved overall health conditions within my underwater haven significantly since its introduction few weeks back into our routine maintenance regime . Its silent operation ensures minimal disturbance while delivering high performance diffusion capabilities providing optimal levels of carbon dioxide necessary for all plant life forms thriving within our marine ecosystem making them flourish with vitality unlike ever before!

  4. Nelle Marks

    amazing

  5. Cleo Conroy

    Exceptional product!

  6. Mattie Rowe

    Being an avid aquarist who loves to keep things simple yet effective, finding products that meet these criteria can be challenging at times. However, when I stumbled upon this external reactor and diffuser combo for CO2 distribution in tanks – it was like striking gold! This handy little device does its job incredibly well without creating any unnecessary noise or fuss. What impressed me most is how evenly it distributes the CO2 throughout the tank ensuring every plant gets enough supply for optimum photosynthesis process which ultimately leads to healthier plants displaying brilliant hues of greenery inside your tank.

  7. Rahsaan Stokes

    i absolutely love this thing.

  8. Tanya Hauck

    This diffuser is a real gem!

  9. Kale Hagenes

    I’ve been in the aquarium hobby for quite some time now, and I can confidently say that this external CO2user is one of the best investments I’ve made. The setup was straightforward – no complicated procedures or confusing instructions. It’s also very quiet during operation, which is a significant plus point as it doesn’t disturb my peaceful aquarium environment. Since using this device, there has been a noticeable improvement in my aquatic plants’ health and growth rate. They are more vibrant and lush than ever before! Plus, my seem happier too; their colors are brighter and they’re much more active. Overall, I’m extremely satisfied with this purchase.

Quick Comparison

12/16mm External CO2 Diffuser & Reactor removeFood-Shaped Squeaky Dog Toy removeSoft Suede Rhinestone Cat Collar removeDurable No-Tangle Braided Dog Leash removeCozy Cat Tunnel Bed with Plush Cushion – Multifunctional Foldable Nest for Indoor Cats removeAdjustable No Pull Dog Harness and Leash Set remove
Name12/16mm External CO2 Diffuser & Reactor removeFood-Shaped Squeaky Dog Toy removeSoft Suede Rhinestone Cat Collar removeDurable No-Tangle Braided Dog Leash removeCozy Cat Tunnel Bed with Plush Cushion – Multifunctional Foldable Nest for Indoor Cats removeAdjustable No Pull Dog Harness and Leash Set remove
Image12/16mm External CO2 Diffuser & ReactorFood-Shaped Squeaky Dog ToySoft Suede Rhinestone Cat CollarDurable No-Tangle Braided Dog LeashCozy Cat Tunnel Bed with Plush Cushion – Multifunctional Foldable Nest for Indoor CatsAdjustable No Pull Dog Harness and Leash Set
SKU166205616599581659881165947916599211659549
Rating
5.00
9 reviews
5.00
13 reviews
4.83
18 reviews
4.89
9 reviews
4.93
14 reviews
4.86
14 reviews
Price
Original price was: $40.65.Current price is: $30.49.
Save 25%
Original price was: $19.99.Current price is: $14.99.
Save 25%
$15.80 $19.49
Save 15%
$44.49 $45.49
Save 15%
$77.49
$36.95 $42.95
Stock
1987 in stock
10 in stock
1279 in stock
7985 in stock
70 in stock
3999 in stock
Availability1987 in stock10 in stock1279 in stock7985 in stock70 in stock3999 in stock
Add to cart

Select options This product has multiple variants. The options may be chosen on the product page

Select options This product has multiple variants. The options may be chosen on the product page

Select options This product has multiple variants. The options may be chosen on the product page

Select options This product has multiple variants. The options may be chosen on the product page

Select options This product has multiple variants. The options may be chosen on the product page

Description
Content

Enhance Your Aquarium's Growth with Precision CO2 Diffusion

Unlock the full potential of your planted aquarium with our 12/16mm External CO2 Diffuser & Reactor. Designed to deliver optimal carbon dioxide levels, this all-in-one solution ensures your aquatic plants receive the CO2 they need for vibrant growth and health. Whether you're a beginner or an experienced aquarist, this CO2 diffuser will take your aquarium to the next level, creating a lush, thriving underwater ecosystem.

Key Features

Our CO2 diffuser is packed with features that make it an essential tool for any planted tank:
  • High-Quality Materials: Crafted from durable aluminum alloy and glass, ensuring long-lasting performance.
  • Integrated Bubble Counter: Built-in bubble counter allows for precise CO2 measurement, ensuring your plants receive the exact amount they need.
  • Check Valve Function: Prevents water from backflowing into your CO2 system, adding an extra layer of protection.
  • Space-Saving Design: Compact and lightweight, this diffuser seamlessly integrates into your setup without taking up valuable space.
  • Efficient CO2 Dissolution: Ensures CO2 is effectively dissolved and distributed throughout the aquarium, reaching every corner for maximum plant absorption.
  • Multiple Sizes Available: Compatible with 12/16mm or 16/22mm pipe diameters, making it versatile for various tank setups.

Why Choose Our CO2 Diffuser?

This CO2 diffuser is more than just a simple accessory; it's a game-changer for your aquarium. By delivering precise amounts of CO2 directly to your plants, it promotes stronger root systems, greener foliage, and faster growth. The integrated bubble counter takes the guesswork out of CO2 dosing, while the check valve function protects your equipment from potential damage. Whether you're cultivating a delicate carpet of aquatic plants or maintaining a vibrant coral reef, this diffuser will enhance the beauty and health of your tank.

Perfect for Planted Aquariums and Coral Reef Tanks

Our diffuser is ideal for both freshwater planted tanks and saltwater coral reef tanks. In freshwater setups, it ensures your plants receive the CO2 they need for photosynthesis, resulting in lush, green growth. In coral reef tanks, it helps maintain optimal CO2 levels, supporting the overall health of your corals. The compact design allows it to fit seamlessly into your existing setup, making it a versatile choice for any aquarist.

Experience the Difference Today

Don't let your plants struggle to grow—provide them with the CO2 they need to thrive. Order our 12/16mm External CO2 Diffuser & Reactor today and watch your aquarium transform into a lush, vibrant paradise. Your aquatic plants and corals will thank you!

Delight Your Pup with the Cute Food-Shaped Squeaky Dog Toy

Transform playtime into a delicious adventure with our Cute Food-Shaped Dog Plush Toy! Designed like a charming stuffed bread, this squeaky toy is perfect for puppies and small dogs who love to chew and play. Made from soft fleece and equipped with squeakers, it’s not only fun but also helps keep your dog’s teeth clean. With its playful design and engaging squeaky sounds, this toy will quickly become your furry friend's favorite!

Product Features

  • Adorable Design: Shaped like a cute piece of bread, this toy is visually appealing and perfect for playtime.
  • Squeaky Fun: Embedded squeakers provide hours of entertainment, encouraging your dog to play and chew.
  • Soft Fleece Material: Made from gentle fleece, it’s soft on your dog’s teeth and gums while being durable for active play.
  • Teeth-Cleaning Benefits: The chewable texture helps clean your dog’s teeth and massage their gums.
  • Perfect for Puppies: Ideal for young dogs, the toy is gentle yet sturdy enough for their playful chewing.
  • Easy to Clean: Simply toss it in the washing machine for a quick refresh, keeping playtime hygienic.

Benefits of the Cute Dog Plush Toy

  • Engaging and Fun: The squeaky feature keeps your dog entertained and active.
  • Teeth Cleaning: Helps to reduce plaque buildup and keep your dog’s teeth healthy.
  • Soft and Safe: Made from soft fleece that is gentle on your dog’s mouth and gums.
  • Easy Maintenance: Convenient to clean, making it a practical choice for everyday use.
  • Perfect for Puppies: Designed to be an ideal size and texture for young dogs.

Make Playtime Extra Special – Get Your Cute Dog Plush Toy Today!

Enhance your puppy’s playtime with the Cute Food-Shaped Dog Plush Toy. With its squeaky fun and teeth-cleaning benefits, it’s the perfect addition to your dog’s toy collection. Order now and watch your furry friend enjoy endless hours of playful chewing and happy squeaks!

Style and Safety Combined for Your Beloved Pet

Give your furry friend the ultimate combination of comfort, style, and safety with our Soft Suede Rhinestone Cat Collar. Designed with your pet’s well-being in mind, this collar is perfect for cats and small dogs that deserve to feel as good as they look. Whether your pet is prancing around the house or exploring the outdoors, this collar offers the perfect blend of luxury and practicality.  

Elegant Design with Bling

Adorned with sparkling rhinestones, this collar adds a touch of glamour to your pet's daily ensemble. The bling not only enhances your pet’s appearance but also ensures they stand out, making this collar both fashionable and functional. Available in a variety of colors including pink, purple, black, red, and blue, you can easily find the perfect match for your pet's personality.  

Premium Suede Leather for Maximum Comfort

Crafted from soft suede leather, this collar is as comfortable as it is stylish. The gentle material is skin-friendly and prevents any irritation, ensuring your pet’s comfort throughout the day. Whether your pet is lounging at home or on the move, this collar provides a cozy fit that won’t bother them.  

Safety First with Breakaway Feature

We understand the importance of your pet's safety, which is why this collar comes with a safety breakaway feature. Designed to release quickly if caught, it ensures your pet won’t get stuck or injured. The quick-release mechanism provides peace of mind, letting your pet roam freely without the risk of harm.  

Perfect for Small Pets

This adjustable collar is ideal for small dogs, cats, and even rabbits. Whether you have a chihuahua, dachshund, or a playful kitten, this collar is designed to fit comfortably. Available in sizes XS and S, it’s perfect for ensuring your pet's collar is neither too tight nor too loose.  

Benefits at a Glance:

  • Stylish rhinestone design for a glamorous look
  • Soft suede leather for all-day comfort
  • Safety breakaway feature to protect your pet
  • Adjustable size, suitable for small pets
  • Available in multiple colors to match your pet's personality
  • Includes a small bell to help you keep track of your pet
 

Make Your Pet Shine

Don’t settle for ordinary when your pet can have extraordinary. With this Soft Suede Rhinestone Cat Collar, you’re not just adding an accessory—you’re enhancing your pet’s life with style, comfort, and safety. Order now and let your pet sparkle with confidence!

Strong and Stylish Leash for Every Adventure

Take your dog walks to the next level with our Durable No-Tangle Braided Dog Leash. This handcrafted leash combines strength, style, and comfort, making it an essential accessory for any pet owner. Whether you're strolling through the park or hiking in the mountains, this leash ensures your furry friend is secure and happy, while you enjoy the comfort of a soft, genuine leather handle. Handmade from 95% cotton and 5% polyester, this braided rope leash offers a smooth, soft feel that’s gentle on your hands, preventing the dreaded wrist burns that come with other leashes. The thoughtful design, with its all-inclusive leather handle, makes walking your dog a pleasure, while the sturdy construction ensures durability for years to come.

Features That Stand Out

This leash is more than just a tool; it’s a stylish statement that complements your pet’s personality. The unique and lovely design not only enhances your dog’s look but also makes your walks more enjoyable, turning every outing into a photo-worthy moment.
  • Comfortable Leather Handle: Say goodbye to hand discomfort. The all-inclusive genuine leather handle is designed for a soft, comfortable grip, making your walks more enjoyable.
  • Perfect Length: At 47.2 inches (S) or 59.1 inches (M) in length and 0.5 inches in diameter, this leash offers the ideal balance between freedom and control, suitable for dogs of all sizes.
  • Heavy Duty Build: The closely woven cotton rope combined with a durable zinc alloy clasp ensures that this leash can withstand the pull of even the strongest dogs.
  • 360° Rotating Clasp: Designed to prevent tangles, allowing your dog to move freely without you getting tangled up.
  • Skin-Friendly: The leash is made using a skin-friendly dyeing process that’s gentle on your dog’s skin and won’t cause irritating allergic reactions.

Why Choose This Leash?

When is this leash best used? Anytime you want to give your dog the freedom to explore while keeping them under control. It’s perfect for daily walks, hikes, and outdoor activities, ensuring both you and your pet have a great time. What makes this leash special is the combination of its durable materials, comfortable design, and stylish appearance. It’s not just a leash; it’s a fashion statement for your pet. Get ready to transform your walks with this stylish and sturdy dog leash. Order today and give your pet the best in comfort and style.

Give Your Cat the Ultimate Comfort and Fun with Our Cozy Cat Tunnel Bed

Provide your feline friend with a delightful combination of playtime and relaxation with our Cozy Cat Tunnel Bed with Plush Cushion. Designed with the curious and playful nature of cats in mind, this multifunctional cat tunnel bed offers a snug retreat that doubles as an entertaining playground. Made from high-quality plush material, this cat bed is the perfect cozy hideaway that your cat will love to curl up in during colder months. The plush interior provides warmth and softness, creating a perfect nest for your kitty to snuggle into.

Product Features

  • Plush Material: The bed is crafted from premium plush fabric, ensuring a warm and inviting space for your cat to relax.
  • Spacious Tunnel Design: With a 25 cm (9.84 inches) diameter, the tunnel offers ample room for your cat to explore, play, and hide, catering to their natural instincts.
  • Generous Size: The overall dimensions of the bed are 84 cm (33.07 inches) in length, 73 cm (28.74 inches) in width, and 27 cm (10.63 inches) in height, providing plenty of space for your cat to enjoy.
  • Two-in-One Functionality: This product combines the fun of a tunnel with the comfort of a bed, offering a versatile space that meets all your cat’s needs.
  • Foldable and Portable: The foldable design allows for easy storage and transport, making it perfect for any space and on-the-go use.
  • Easy to Clean: The detachable and machine-washable components make maintenance a breeze, ensuring your cat’s space stays clean and hygienic.

Why Choose the Cozy Cat Tunnel Bed?

This Cozy Cat Tunnel Bed is not just a bed; it’s a multifunctional piece that enhances your cat's daily life. The plush material provides warmth and comfort, especially during winter months, ensuring your pet stays cozy and happy. The spacious tunnel encourages active play, helping to keep your cat engaged and entertained. Whether your cat loves to hide, pounce, or simply curl up in a soft, warm space, this tunnel bed offers it all. Perfect for indoor use, this bed is an excellent choice for cat owners who want to offer their pets a blend of comfort and activity in one convenient product. Its foldable design makes it easy to store away when not in use, and the easy-to-clean feature ensures your cat’s nest remains a clean and inviting space.

Benefits for Your Cat

  • Provides a warm and cozy environment, ideal for winter months.
  • Encourages playful behavior with its spacious tunnel design.
  • Generous size offers plenty of space for play and rest.
  • Versatile use as both a bed and a tunnel, fulfilling multiple needs.
  • Easy to store, transport, and clean, offering convenience for pet owners.
  • Creates a safe and comfortable space for your cat to retreat and relax.

Transform Your Cat’s Playtime and Rest Time

Ready to give your cat the best of both worlds? Our Cozy Cat Tunnel Bed with Plush Cushion is the perfect solution. With its generous dimensions of 84 cm x 73 cm x 27 cm, it provides ample room for your cat to enjoy endless hours of fun and relaxation. Add this multifunctional cat bed to your home today and watch as your cat enjoys the ultimate in comfort and entertainment. Don’t wait—bring warmth, comfort, and joy to your furry friend’s life now!

Comfort Meets Control: The Perfect Harness and Leash Set for Your Furry Friend

Walking your dog should be a joy, not a chore. With our Adjustable No Pull Dog Harness and Leash Set, every walk becomes a comfortable and stylish experience for both you and your pet. Designed specifically for small and medium dogs, this harness and leash combo offers a perfect blend of comfort, control, and durability, making it an essential addition to your pet’s wardrobe.   Crafted from high-quality, double-layered polyester fabric, this harness is built to last. The reinforced box stitching ensures maximum strength and durability, while the chrome-coated metal hardware is resistant to wear and rust, making this harness suitable for all seasons. The step-in design makes it incredibly easy to put on and take off, thanks to the quick-release ABS plastic buckle. Plus, the adjustable straps allow you to achieve the perfect fit, ensuring your dog stays comfortable on every adventure.

Why Choose This Dog Harness and Leash Set?

  • No Pull Design: The harness is designed to prevent pulling, giving you greater control over your dog during walks, reducing strain on both you and your pet.
  • Adjustable Fit: With two adjustable points, this harness can be customized to fit your dog’s unique shape, offering a snug yet comfortable fit.
  • Durable and Long-Lasting: Made from thick polyester fabric with reinforced stitching and rust-resistant metal hardware, this harness is built to withstand daily wear and tear.
  • Stylish and Functional: The harness features a unique pattern design that adds a touch of charm and style, making your dog stand out during walks. The matching leash completes the look, making it both functional and fashionable.
  • Easy to Use: The step-in design and quick-release buckle make putting on and taking off the harness a breeze, saving you time and hassle.

Benefits You’ll Love

  • Enhanced Comfort: Your dog will appreciate the soft, comfortable fit that doesn’t chafe or restrict movement.
  • Increased Safety: The strong metal D-rings allow for secure leash attachment, reducing the risk of accidental escapes.
  • Effortless Control: The no-pull design helps manage your dog’s behavior on walks, making them more enjoyable for both of you.
  • Fashionable and Unique: The stylish pattern design ensures your pet looks as good as they feel.

Make Every Walk a Wonderful Experience

Whether you're taking a leisurely stroll around the neighborhood or embarking on a longer outdoor adventure, this Adjustable No Pull Dog Harness and Leash Set is the perfect companion. Its thoughtful design, durable materials, and charming style make it a must-have for any dog owner looking to enhance their walking experience. Don’t settle for less when it comes to your pet’s comfort and safety. Get yours today and enjoy the peace of mind that comes with knowing your dog is secure, comfortable, and looking their best.
WeightN/AN/AN/AN/AN/AN/A
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Sold001000
Shipping
Select the fields to be shown. Others will be hidden. Drag and drop to rearrange the order.
  • Image
  • SKU
  • Rating
  • Price
  • Stock
  • Description
  • Weight
  • Dimensions
  • Additional information
  • Add to cart
Click outside to hide the comparison bar
Compare