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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
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Description
UNS Pro Inline CO2 Diffuser - 12mm (1/2in)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.
Compatible Filters
- UNS Delta 30 Canister Filter
- UNS Delta 60 Canister Filter
- UNS Delta 90 Canister Filter
- UNS Blitz 32oz. Canister Filter
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.
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
4.0 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Watch with day & date
Nice watch, light in weight. Looks good with the grey background.
Has the day and date too, just wish they were a little larger, for easier reading.
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Reviewed in the United States on September 24, 2025
★★★★★ 5
Amazing buy!
Love it. Very nice looking and seems to keep time well. Incredible value!!!! I really enjoy wearing this watch!
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Reviewed in the United States on September 26, 2025
★★★★★ 5
Es muy elegante
Color: 3316：white band white dial
The OUPINKE Automatic Two-Tone Skeleton Watch is a stylish timepiece that blends luxury design with mechanical craftsmanship. Its gold and silver stainless steel construction gives it an elegant, premium look suitable for both formal and casual occasions.
Design & Appearance:
This watch stands out with its two-tone bracelet and gold-accented bezel, creating a bold and sophisticated aesthetic. The dial features crystal-style hour markers, multiple subdials, and a visible skeleton window at the bottom that showcases the internal movement. These details add a high-end feel often associated with more expensive watches.
Movement & Performance:
It uses an automatic mechanical movement, which means it winds itself through the motion of your wrist—no battery required. This is a major advantage for watch enthusiasts who appreciate traditional watchmaking. The watch also includes useful calendar features such as day, date, and month indicators.
Build Quality:
The stainless steel case and bracelet feel solid and durable. The polished finish enhances its luxury appeal, although like most polished watches, it may show fingerprints or small scratches over time.
Comfort:
Despite its robust design, the watch is comfortable to wear. The bracelet is well-balanced, and the clasp keeps it secure on the wrist.
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Exceptional quality
I have only had the watch for a few days, but Oupinke watches are very high quality. It keeps time very well and serves as an attention grabber. Great value for the money. It isn't easy to determine where it was made, but it is a Chinese company. Don't stop there with preconceived ideas about cheap products and low quality from China. These watches are exceptional, high-end, and dedicated to creating a brand that endures and stands for quality, rather than simply turning a profit. I would put this watch against those that cost 3-4 times as much. If you are a watch enthusiast, they are worth adding to your collection.
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Reviewed in the United States on June 17, 2025
★★★★★ 5
Value
Color: GZ3255Z:Two tone band&Blue dial
Higher quality than I expected, especially for the price.
I have recieved lots of compliments, but I have never told anyone what I paid for it.
I use it for a daily wear, and when I go out for dinner.
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Reviewed in the United States on August 2, 2025
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