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STAGE 2 – TWIST-IN CARBON BLOCK FILTER CARTRIDGE: Recommend replacing every 6 months
Strontium supports the formation of coral skeletal tissue and improves the absorption of calcium
Reads Salinity (ppt) on an Apex and PM2 Module
If the system is smaller than that
Aqua Ultraviolet Classic 25 Watt Unit, 3/4" Inlet/Outlet Corals STAGE 2 – TWIST-IN CARBONColor: White Dimensions: 20 x 3 3 4 x 6 Freshwater: 500 1,200 Gallons Saltwater: 150 Gallons The Classic Series UVs are ideal for ponds, aquariums, and water features. The Classics rugged design has features that allow for quick installation and easy maintenance. Aqua Ultraviolet UVs will clear your water in 3 to 5 days sometimes overnight and keep it that way. Performance is guaranteed when sized, installed and operated according to our instructions.
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