Husqvarna 530047721 Purge Bulb Replacement for Small Engine Carburetors;

Choose this manufacturer-approved purge bulb for your carburetor. This bulb replaces the worn or damaged purge bulb on your Poulan small engine's carburetor. The bulb snaps-in to a variety of Poulan engine carburetors found in chainsaws, line trimmers and other lawn care devices that use small engines.