Hydro-Logic ARCS Stage 3 pH Neutralizing-Remineralizing Cartridge Tenax High output lamps have an

High output lamps have an extremely high lumen per watt rating

GL240 & GL290

A 2 oz package of RAW Calcium/Mag makes up to 200 gallons

Runs on HPS Ballast

Hydro-Logic ARCS Stage 3 pH Neutralizing-Remineralizing Cartridge Tenax High output lamps have an#741608 ARCS Stage 1 Replacement Poly Spun sediment filter reduces rust, silt, dirt, sand and sediment. Change every 5,000 gallons of product water. #741610 ARCS Stage 3 Replacement pH Neutralizing Remineralizing Cartridge to balance out and stabilize the pH. Replace every 10,000 gallons of product water. #741612 ARCS Stage 2 Replacement Heavy Metal Reduction Cartridge to remove heavy metals. Replace every 10,000 gallons of product water or as needed.