PlumbMaster Approved GD104 4" Green Drain ABS Waterless Trap Seal

The PlumbMaster Approved 4" Green Drain ABS Waterless Trap Seal (GD104) is a trap vents & repairs product. One-way valve creates seal to eliminate floor drain odor issues. GreenDrain series inline floor drain trap seal with UV resistant ABS plastic frame, silicon rubber sealing flapper and (4) flexible sealing ribs. Prevents and blocks bugs from crawling up through floor drains. Manufactured by PlumbMaster Approved for residential and commercial plumbing repair and maintenance applications.