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12/16mm External CO2 Diffuser & Reactor

Original price was: $40.65.Current price is: $30.49.
Estimated Delivery:
30 Nov - 07 Dec, 2025
1662056

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 removeDurable No-Tangle Braided Dog Leash removeSoft Suede Rhinestone Cat Collar removeWaterproof Breathable Harness removeMultifunctional Hands-Free Dog Leash removeStrong Retractable Dog Leash with Ergonomic Handle and One-Handed Brake remove
Name12/16mm External CO2 Diffuser & Reactor removeDurable No-Tangle Braided Dog Leash removeSoft Suede Rhinestone Cat Collar removeWaterproof Breathable Harness removeMultifunctional Hands-Free Dog Leash removeStrong Retractable Dog Leash with Ergonomic Handle and One-Handed Brake remove
Image12/16mm External CO2 Diffuser & ReactorDurable No-Tangle Braided Dog LeashSoft Suede Rhinestone Cat CollarWaterproof Breathable HarnessMultifunctional Hands-Free Dog LeashStrong Retractable Dog Leash with Ergonomic Handle and One-Handed Brake
SKU166205616594791659881165993616594051659411
Rating
5.00
9 reviews
4.89
9 reviews
4.83
18 reviews
4.91
11 reviews
4.93
14 reviews
5.00
9 reviews
Price
Original price was: $40.65.Current price is: $30.49.
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$44.49 $45.49
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Original price was: $44.65.Current price is: $33.49.
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Original price was: $62.40.Current price is: $46.80.
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Original price was: $79.53.Current price is: $59.65.
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Availability1987 in stock7985 in stock1279 in stock215 in stock999 in stock1000 in stock
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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!

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.

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!

Enhance Your Dog's Adventures with the Waterproof Breathable Harness

Ready for your dog’s next adventure? Our Waterproof Breathable Dog Harness is the ultimate choice for small to medium dogs who love to explore. Designed with comfort and safety in mind, this harness combines a breathable mesh material with soft padding and reflective elements, making it perfect for hiking, daily walks, and any weather conditions.

Product Features

  • Waterproof Design: Keep your dog dry and comfortable in all weather conditions with our waterproof harness.
  • Breathable Mesh: The mesh material ensures optimal ventilation, preventing overheating during active play.
  • Soft Padded Protection: The padded interior safeguards your dog’s chest from chafing and irritation.
  • Reflective Elements: Enhance your dog's visibility during evening walks with built-in reflective strips for added safety.
  • Adjustable Fit: Available in sizes suitable for small to medium dogs, this harness can be easily adjusted for a snug and secure fit.
  • Quick Release Buckles: Easy to put on and take off, making your outings hassle-free.

Benefits of the Waterproof Breathable Dog Harness

  • Comfortable Fit: Soft padding and breathable mesh keep your dog comfortable during any activity.
  • Safe and Visible: Reflective elements enhance visibility in low light, ensuring your dog is seen by others.
  • Durable and Practical: Waterproof material withstands various weather conditions, and quick-release buckles make it easy to use.
  • Perfect for Active Dogs: Ideal for hiking, walking, and exploring, this harness is built to handle your dog’s energy.

Gear Up for Adventure – Order Your Dog's New Harness Today!

Ready to give your dog the comfort and safety they deserve? Our Waterproof Breathable Dog Harness is the perfect choice for any adventure. With its practical features and stylish design, it's a must-have for every active dog owner. Order now and make your dog's outdoor experiences more enjoyable and secure!

Experience Freedom and Control with the Multifunctional Hands-Free Dog Leash

Transform your outdoor adventures with your furry friend using the Multifunctional Hands-Free Dog Leash. Designed for convenience and versatility, this leash offers the perfect balance of freedom and control, allowing you to enjoy every moment without the hassle of managing a traditional leash. Whether you're running, hiking, or simply strolling around the neighborhood, this leash adapts to your needs, making it an essential tool for active pet owners.

Product Features

This hands-free dog leash is engineered to enhance your outdoor experience, offering a range of features that ensure both comfort and safety for you and your dog:
  • Convenient & Easy to Adjust: With three O-rings and two heavy-duty hooks, you can easily adjust the leash to various lengths and styles. Use it as a leash for two dogs, a waist leash, a shoulder leash, or even a quick tie. It adapts to your preferences and comfort effortlessly.
  • Durable & High-Quality Construction: Made from tightly woven nylon with strong leather connectors, this leash is both lightweight and robust. It’s equipped with two heavy-duty alloy snap hooks, making it bite-resistant, tear-resistant, and stable, ensuring long-lasting use.
  • Flexible Control: The 10ft (3.1m) length gives your dog the freedom to explore while keeping you in control. It’s ideal for relaxed walks or high-energy activities like running and hiking.
  • Reflective Design: Safety is a priority with this leash. The super bright reflective strips run the entire length, providing maximum visibility during low-light conditions, ensuring you and your dog stay safe.

Why Choose the Multifunctional Hands-Free Dog Leash?

This leash isn’t just an accessory; it’s a game-changer for any dog owner who loves outdoor activities. Here’s what makes it special:
  • Versatility for Any Activity: Whether you're jogging, walking, camping, or hiking, this leash is perfect for all your outdoor activities. Its adjustable design makes it suitable for a variety of settings and uses.
  • Ideal for Medium & Large Dogs: Designed with strength and durability in mind, this leash is perfect for medium and large dog breeds, giving them the freedom to move while keeping them securely by your side.
  • Comfortable & Ergonomic: The leash’s ergonomic design ensures a comfortable fit, reducing strain on your hands and waist, allowing you to enjoy longer walks or runs without discomfort.
  • Reliable & Secure: The heavy-duty construction ensures that even the most energetic dogs are safely controlled, giving you peace of mind during your adventures.

Take Control of Your Walks Today

Upgrade your dog walking experience with the Multifunctional Hands-Free Dog Leash. Its versatile design, durable construction, and safety features make it the perfect companion for all your outdoor activities. Don’t miss out on the opportunity to make your walks, runs, and hikes more enjoyable for both you and your dog. Add this leash to your cart and start your next adventure today!

Effortless Control and Comfort for Every Walk

Transform your daily walks into a breeze with this Strong Retractable Dog Leash, designed for dogs of all sizes. Whether you have a small, energetic pup or a large, powerful companion, this leash offers a perfect balance of control and freedom. The ergonomic handle fits comfortably in your hand, while the one-handed brake system ensures you can manage your dog effortlessly, even in busy environments. With its solid build and tangle-free design, this leash is the reliable partner you need for enjoyable walks in any season.

Features That Stand Out

This leash isn't just a basic pet accessory; it's a thoughtfully designed tool that makes every walk easier and more enjoyable. The quick-release feature lets you adapt instantly to changing situations, while the 360-degree no-tangle mechanism ensures your dog can explore freely without getting tangled. Made from durable materials, this leash is built to last, providing you and your dog with long-term reliability. Whether you're taking a leisurely stroll through the park or navigating crowded streets, this leash gives you the control and comfort you need.

Why This Leash is a Must-Have

  • Ergonomic Handle: Enjoy a comfortable grip that reduces hand strain, even on long walks.
  • One-Handed Brake: Effortlessly control your dog’s movements with a simple press, allowing you to stop or retract the leash instantly.
  • 360 Degree No Tangle: Your dog can move freely without the leash getting tangled, making walks smoother and more enjoyable.
  • Strong and Durable: Built to withstand the strength of large dogs while being gentle enough for smaller breeds.
  • Quick Release: Easily adjust the length of the leash in any situation for optimal control.

Take Control of Every Walk

Don't let a poorly designed leash ruin your time outdoors. Upgrade to this Strong Retractable Dog Leash and experience the difference. With its combination of strength, comfort, and practical features, this leash is perfect for every dog owner who values quality and convenience. Make every walk a pleasure—order yours today and give your dog the freedom they crave with the control you need.
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