· ✅ 6-Pack Plunger O-Ring for Waste Drain Valve· ✅ Compatible with T&S Brass 010389-45· ✅ Compatible with T&S Brass B-3940, B-3940-01, B-3940-01-BSP, B-3940-01-XS, B-3940-BSP, B-3940-XL, B-3940-XS, B-3942, B-3942-01, B-3942-01-XS, B-3942-XL & B-3942-XS· ✅ See Description Below for a List of Compatible Products· ✅ O-ring Dimensions are 2 1/8” Outside Diameter & 1 11/16” Inside Diameter & 7/32” Thickness