Description Manuals Videos Articles Popular Accessories Clemco #02657 Clemco SG-300 Suction Gun replacement valve seat gasket. Item #23 Related Parts (5) Parts Included (5) Seat, ACE valve #24078 $78.72 254 Auto Quantum Valve Seat, Urethane #21344 $38.35 472 Gasket, Shaft on Abrasive Valve #02439 $10.34 499 Valve Body Gasket #01260 $9.76 1129 Valve seat, brass #02651 $30.80 1335