Gas Primer Bulb 22mm Fits Craftsman Fits Walbro Fits Weed Eater 530035497 188-1One (1) New Aftermarket Replacement Primer Bulb Fits several makes and models including Fits Zama C1U and C1Q M Carburetors. Fits Poulan Equipment with Fits Walbro Carb models: WA 224 1, WA 226 1, WA 228 1, WA 229 1, WA 230 1, WA 232 1,WA 323 1, WT 501 1, WT 519 1, WT 557 1, WT 558 1, WT 586 1, WT 587 1, WT 592 1, WT 606 1, WT 626 1, WT 630 1, WT 631 1, WT 632 1, WT 638 1 May also fit several models Fits Echo, Fits Stihl, Fits Ryobi, Fits Homelite and