Primer Bulb / Poulan 530-038874Pack Size:1Poulan 530-038874Laser 87196, NHC 203-5421, Oregon 49-444, Rotary 12440Weedeater 111-196, BC2400, BC24W, BC308, BC3100, GT115-19, 52, LT17, HP22, 28, XT125, 20-50, 85, 7000 and 7500OD: 1/8 ", Height: 3/16 ", Ethanol: Not compatible with greater than 10% ethanol fuel