This is a 1/4 Inch Stenner FKM Duckbill Check Valve for all Stenner pumps excluding models with S4 prefix. It includes a FKM duckbill and 1/4 inch ferrule. This chemical injection check valve also works on CAT Controller models CAT 1000, 2000, 4000, 5000 and HCC Automated Controllers with Stenner pumps.
This duckbill valve is constructed of FKM rubber, also known as Viton. FKM provides additional heat and chemical resistance and may be required depending on your set-up.
