UNS Pro Inline CO₂ Diffuser, 12 mm (1/2 in)

This 12 mm (1/2 in) diffuser puts CO₂ into the return hose on a compatible canister filter. A replaceable ceramic disc breaks the gas into fine bubbles.

Use with pressurized CO₂ on the filter return. This size fits the UNS Delta 30, 60, and 90.

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