Available from Aquascape in the following sizes:
CHECK VALVE 1.5" ULTRAPOND PUMP - 99314
CHECK VALVE 2" ULTRAPOND PUMP - 99315
CHECK VALVE 3" ULTRAPOND PUMP - 99316
These have a Male Threaded going towards the pump and a Slip connection going toward the Biofalls.
See all Aquascape Pumps