Primer Bulb Repair Kit for Craftsman, Poulan, Weedeaters and Chainsaws. Can Be Trimmed to a Diamond Shape. Contains Walbro Carburetor 188-519-1 Primer Bulb. Poulan #530-038874. Includes Fuel Lines and Tank Filter. Resists up to 20% Ethanol Fuels. Replaces Craftsman, Poulan and Weedeater Primer Bulbs on Trimmers, Chainsaws and Blowers Plus replace those broken or cracked fuel lines with high quality Tygon fuel line. Primer Assy marked (Carb) on one connection and (Tank) on the other Primer Bulb assy can be trimmed to a diamond shape for chainsaws and other equipment Distance between mounting holes 1 1/8". two different size hose connections. Made In The USA