Product Description Specifications EPDM Pull Plug: Major Dia: 0.77 IN. 19.6 mm; Minor Dia: 0.375 IN. 9.5 mm; Length: 1.125 IN 28.6 mm; Hole thread: 3/4; Box Qty: 50 Max Temperature: 450° Major Diameter: 0.77 inch Metric Major Diameter: 19.6 mm Minor Diameter: 0.375 inch Metric Minor Diameter: 9.5 mm Material: EPDM Color: Black