Westbrass D3322-07 1-1/2-Inch NPSM Coarse Thread Tip-Toe Bath Drain, Satin Nickel 1-1/2" tip toe style bath drain; Coarse thread 1-1/2" NPSM (1-7/8" - 11-1/2 UNC) exterior Adjustable plastic tip toe cartridge Brass construction 1-1/2 in. NPSM tip toe style bath tub drain Coarse thread drain shoe 1-1/2 in. NPSM (1-7/8 in. - 11-1/2 UNC) exterior Push down round cap to close and restrict draining water Adjustable plastic tip toe cartridge Heavy duty metal construction Do not use plumber&#039;s putty for installation use silicone seal