AR 503 Diaphragm Kit, AR43295 Type_Tank Fittings Width - 38"

Width - 38"

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1x 12719A AS568A -375 O-RING

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38605   Small               1 - 3 GPM

AR 503 Diaphragm Kit, AR43295 Type_Tank Fittings Width - 38"Part # AR43295 is the diaphragm rebuild kit for the AR 503 diaphragm pump. AR recommends changing the diaphragms every 500 hours or three months, whichever comes first. Part# AR43295 replaces 9910 Kit1881 and will also rebuild the Hypro D503 pump. When rebuilding the pump diaphragms follow all factory torque specifications. Replacing diaphragms will require new oil. Replace with 30 weight non detergent.