AquaLife Stainless Check Valve Rack1 3X more concentrated for demanding

3X more concentrated for demanding species*

simply authentic

alongside Phosphorus and a nitrogen source

Available in a range of sizes

AquaLife Stainless Check Valve Rack1 3X more concentrated for demandingAquaLife Stainless CO2 Check Valve The AquaLife Stainless CO2 Check Valve is a small but essential safeguard for a pressurized CO system it lets gas flow one way only, from your regulator toward the tank, while stopping water from siphoning back up the line. Without one, tank water can creep backward into your tubing and ultimately your regulator, where it causes corrosion and failure. The stainless steel build is rated for the slightly acidic,