OUTER SIZE: 3 1/8 inch in diameter.
EXCELLENT COMPATIBILITY: Only compatible with Waste King, Whirlaway and GE disposal.
GOOD MATERIAL: Made of Nitrile Butadiene Rubber which has excellent oil resistance, high wear resistance, good heat resistance, strong adhesion.
USEFUL FUNCTION: Prevent the water and debris from splashing upward and reduce disposer noise.
EASY TO INSTALL: No tools, Easy to replace that old one.