Pump Adapter, 1" FPT x 3/4" and 1" stepdown hose connector. This insert adapter is for Quiet One 2200/3000/4000/5000/6000 Aquarium, Pond and Fountain pumps. The Stepdown features allows you to connect a 3/4" or a 1" hose to it. If you use a 1" hose it is recommended to cut off the 3/4" level so the flow is not restricted.

This adapter is standard 1" FPT thread and comes with a rubber gasket for sealing so it can be used for other 1" MPT fittings