General Wire 4F 4"" Float Model Flood Guard GLO-B213971

FEATURES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" GENERAL PIPE CLEANERS 4"" FLOAT MODEL FLOOD GUARD . FLOOD-GUARD OPERATES LIKE A CHECK VALVE TO SEAL OFF WATERBACK-UP CAUSED BY OVERLOADED SEWERS WATER FLOWS NORMALLY THROUGH THE DRAIN UNTIL THE SEWER BEGINS TO BACKUP THEN THE FLOOD-GUARD FLOAT RISES TO SEAL OFF THE DRAIN OPENING UNTIL THE WATER RECEDES A SCREWDRIVER AND A COUPLE OF MINUTES ARE ALL YOU NEED TO INSTALL A FLOOD-GUARD ONCE IN PLACE IT CAN PREVENT PROPERTY DAMAGE AND A VERY MESSY CLEAN-UP JOB GASKETS ARE MADE OF MOLDED RUBBER AND ALL METAL PARTS ARE PLATED OR STAINLESS STEEL.