Sierra 18-8002EP-1 EPA Primer Bulb Assembly 1/4"Sierra is a leading supplier of primer bulbs to the marine aftermarket. Our bulbs are molded in house; We use double check valves with viton balls and stainless steel springs; Both EPA/CARB certified; Utilizes Floroelastomer (FKM) material for traditional look and operation; 7 1/2" or 190.5mm overall length including barbs; Meets current EPA regulations in effect 1/1/2011 of 15 g/m2/24 hrs; I.D.: 1/4"