Aqua Ultraviolet® SP Series 40 Watt Pool & Spa Sterilizers Model:40 Watt UV Sterilizer These replacement spring check valves

These replacement spring check valves are used as replacements for the double union check valves used on AquaBead filters

It can be used as a biological chamber if filled with biological filter media

Texture molded and colored to look exactly like real rocks and stones

Does not include ground stakes

Note: Do not use salt or any medicated treatments while treating with Terminate™

Aqua Ultraviolet® SP Series 40 Watt Pool & Spa Sterilizers Model:40 Watt UV Sterilizer These replacement spring check valvesThe Aqua Ultraviolet Swimming Pool Series UV Clarifiers are specially designed for pools and spas. Clears water and eradicates algae, bacteria, or protozoa in as little as 3 to 5 days when sized, installed and operated according to instructions all without producing harmful residuals. Optional wiper* cleans quartz sleeve to maximize UV light transmission and optimize performance! Lowers chemical use and cost by up to 75% Eliminates chloramine and its