Overhauling Kit For 821 Vent Valve To Kb [Overhauling Kit For 821 Vent Valve To Kb Part No 785260 Consisting Of 21 Items. Details As Below: 1) Ring Gasket, 1 Flange To Kbi Part No 731056. Qty/Kit- 01 No. 2) Ring Gasket, 1 Flange To Kbi Part No 731056. Qty/Kit- 02 Nos. 3) Ring Gasket To Kbi Part No 731258. Qty/Kit- 01 No. 4) Strainer Felt To Kbi Part No 734454. Qty/Kit- 01 No. 5) Seal To Kbi Part No 748688. Qty/Kit- 01 No. 6) Washer Vent Valve To Kbi Part No 748698. Qty/Kit- 01 No. 7) Diaphragm/73225103/105750843 (EXPIRED)