GENERAL WIRE 4F 4" Flood Guard/Standpipe Model
- Operates like a check valve to seal-off water back-up caused by overloaded sewers.
- Installs in minutes.
- Standpipe models for use in extreme, extended pressure situations.
- Gaskets are made of molded rubber.
- All metal parts are plated or stainless steel.
- Made in U.S.A.