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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
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Description
UNS Pro Inline CO2 Diffuser - 20mm (1in)Achieve superior CO2 diffusion with the UNS Pro Inline CO2 Diffuser, designed for seamless integration into your filtration setup. This premium diffuser connects directly to your canister filters tubing, ensuring efficient and uniform CO distribution throughout your aquarium. Unlike existing Inline CO2 diffusers, the UNS Pro Inline CO2 Diffuser does not impede your filter's flow by placing the ceramic plate on the side of the diffuser. This makes the
Achieve superior CO2 diffusion with the UNS Pro Inline CO2 Diffuser, designed for seamless integration into your filtration setup. This premium diffuser connects directly to your canister filter’s tubing, ensuring efficient and uniform CO₂ distribution throughout your aquarium.
Unlike existing Inline CO2 diffusers, the UNS Pro Inline CO2 Diffuser does not impede your filter's flow by placing the ceramic plate on the side of the diffuser. This makes the ceramic plate easy to replace and clean as well.
Key Features
- Fine ceramic disc provides ultra-fine CO2 bubbles, maximizing gas dissolution and minimizing wasted CO2.
- Available in 12mm (1/2"), 16mm (5/8"), and 20mm (1") tubing sizes for compatibility with a wide range of external filters.
- Fits perfectly into the UNS Delta and Blitz filter lineup.
- Installs outside the tank, eliminating visual clutter from your display tank.
- Built from high-quality, corrosion-resistant materials for long-lasting performance and easy maintenance.
- Ensures stable CO₂ levels to support lush plant growth and balanced water chemistry.
- Can be used inside UNS Holding systems to reduce clutter and provide superior CO2 coverage.
Whether you're a seasoned aquascaper or just starting your planted tank journey, the UNS Inline CO2 Diffuser offers a clean, efficient, and professional-grade solution to elevate your aquarium’s potential.
Compatible with pressurized CO₂ systems only.
For use with canister filters or UNS Plant holding systems only.
Not suitable for use with sponge or internal filters.
Bulk Discounts:
| Quantity | % Off | Price Per Unit |
| Single Unit | - |
$27.00 |
| 5 Pack | 10% |
$24.30 |
| 10 Pack | 20% |
$21.60 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Chews
Size: Extra Small, Color: Blue
Chewy toys to keep my dogs, teeth, healthy very important. This was a very good price and I highly recommend buying it for your puppy.
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Reviewed in the United States on June 11, 2026
★★★★★ 3
Dog likes some
Size: Extra Small, Color: Blue
Puppy will chew on this but not favorite. Over time it gets sharp pieces and dog could ingest. Not sure how safe for a small dog. Affordable but not long lasting.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Pug approved
Size: Extra Small, Color: Blue
Bought for my pug to teeth on when he was a puppy. He's almost year old and he still packs his little bone around
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Great for teeth cleaning
Size: Extra Small, Color: Blue
My dog loves it. She’s a Yorkie and it’s perfect for her.
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Reviewed in the United States on June 10, 2026
★★★★★ 1
Made for very small dogs- don’t buy if you have medium to large dogs
Size: Extra Small, Color: Blue
2 of my 3 dogs chewed right threw it <5 minutes of getting it causing a potential choking hazard. It’s small not durable but definitely soft. Only suitable for very small dogs
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Reviewed in the United States on April 17, 2026