Westbrass D331-11 1-1/2" NPSM Twist & Close Bathtub Drain Plug, Coarse Thread, Antique Copper

1-1/2 in. NPSM twist & close style bath tub drain | Coarse thread | 1-1/2 in. NPSM (1-7/8 in. - 11-1/2 UNC) exterior | Twist and lower to close and restrict draining water | Heavy duty metal construction