This is to replace the small fuel drain valve you press at the bottom of the carburettor float bowl to drain old fuel or water out of the bowl.
Carburettor Bowl Drain Valve & Seal, Qualcast Classic 35s, 43s Mower AQ148, CP10
Carburettor Bowl Drain Valve & Seal, Webb Diplomat 300, 350, 450 Mower A114 CP10
HONDA GC 135 160 GCV135 GCV160 IZY MOWER CARBURETTOR BOWL 'O' RING SEAL GASKET
Carburettor Bowl Gasket Seal For Tecumseh Engine Replaces Part No. 29630076
Carburettor Bowl Seal Fits Honda G150 G200 G300 G400 GCV160 GCV135 GC160 GC135
Carburettor Bowl Gasket Fits QUALCAST SUFFOLK