An Aquascape Check Valve Assembly is needed to connect your pump to the pond plumbing. Dual union check valves have a removable connection underneath the check valve which allows you to disconnect the pump and plumbing without draining the water in your pipe.
29500 -for use with Microskim USED WITH AQUASURGE 2000 & 3000
29501 -for use with Signature series Skimmers 6.0 & 8.0, Pondless Vault USED WITH PROGRADE & TSURUMI PUMPS
29108 - for use with Signature series Skimmers 6.0 & 8.0, Pondless Vault USED WITH AQUASURGE PUMPS
29099 -for use w/ pondless waterfall vault w/ extensions & Large snorkel ALL PUMPS
29098 -for use with systems requiring 3" pipe USED WITH HIGH FLOW PUMPS