Jones Stephens P26004 4 INCH TRAP SEALJones Stephens P26004 Jones Stephens' trap seals are the ideal solution for infrequently used floor drains. Designed to minimize evaporation within the trap, the trap seal device will open to allow the flow of drainage and close when there is no flow. This prevents harmful sewer gases from escaping into the room. The trap seals are available in 2", 3", 3 1 2" and 4" and can be used in floor drain outlets or drains with adjustable strainers. Minimizes