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This item qualifies for FREE shipping to the contiguous U.S. Shipping to Alaska or Hawaii? Contact us for a custom shipping quote—we’re here to hel...

This item qualifies for FREE shipping to the contiguous U.S. Shipping to Alaska or Hawaii? Contact us for a custom shipping quote—we’re here to hel...

When you are injecting pressurized CO₂, finding the sweet spot is a delicate balancing act. Too little gas stalls plant growth, while too much can ...

This item qualifies for FREE shipping to the contiguous U.S. Shipping to Alaska or Hawaii? Contact us for a custom shipping quote—we’re here to hel...

When you are managing a beautiful nano aquarium or a compact desktop scape, finding space for bulk equipment can be a real challenge. The UNS CO₂ P...

The UNS Pro Check Valve is made from aluminum alloy and designed to handle high pressure while preventing the backflow of aquarium water into air p...

Over time, the fluid inside your glass drop checker will naturally fade, lose its vibrancy, and become less reactive to your tank's chemistry. If y...

The UNS Pro CO₂ Manifold Block is a premium add-on extension designed to clip directly onto your existing UNS Pro Dual Stage Regulator. By stacking...

The UNS CO₂ Cylinder Pro (5LB) is a compact, heavy‑duty aluminum tank engineered to give planted‑tank hobbyists reliable, long‑lasting CO₂ delivery...

Over months of continuous operation, the microscopic pores on your inline diffuser's ceramic disc can slowly trap organic buildup, debris, or hard ...

The UNS Micro CO₂ Regulator Kit packs a regulator, a silent solenoid, and a bubble counter into one sleek, incredibly compact bundle. It is the ult...

The UNS Micro CO₂ Bubble Counter gives you a crystal-clear visual on exactly how much CO₂ is entering your aquarium so you can keep your plants hap...

This listing includes a replacement solenoid ONLY. CO2 regulator not included with purchase.A solenoid is what will turn your regulator on and off....

The UNS CO₂ Cylinder Pro (2.5LB) is a heavy-duty, premium aluminum tank that supports thriving, high-tech planted aquariums. Lightweight, corrosion...

The UNS CO₂ Cylinder Pro (20LB) supports planted tanks that demand long‑term stability and a serious, uninterrupted CO₂ supply. With a massive, ref...

The UNS CO₂ Diffuser is designed for aquascapers who want clean visuals and reliable performance, because no one wants a bulky piece of plastic dis...

If you started your high-tech nano tank journey with disposable cartridges but are ready to transition to a more cost-effective, long-term solution...

The UNS Micro CO₂ Solenoid is the brain of your gas setup, allowing you to completely automate your tank's schedule. Simply plug it into a standard...

Attach your CO2 regulator to a paintball CO2 tank using this adapter! A built-in pressure relief hole is included for increased safety measures whe...

Your solenoid is the electronic gateway of your CO₂ system. When your timer clicks off at night, the solenoid is supposed to shut tight to prevent ...

The pressure plate spare parts set is designed to address and correct a zero output pressure reading on your UNS CO2 Regulator.  Regulator not incl...

The UNS Micro CO₂ Regulator is the absolute smallest model in the lineup, designed specifically to save space without cutting any corners on perfor...