AquascapePro™ Check Valve Assembly 3 in.

Check Valve Assembly for AquascapePro™ 10,000 Pump in Grande Skimmer, or Large Snorkel. For 3 in pipe diameter. You need a check valve assembly to hook up your pump to your plumbing. Prevents water from draining out of the Biofalls™ Filter. Simplifies pump removal. Only one of the check valves pictured is in the kit. The 2 in check valve is also pictured.