9910-KIT1917 D30 Valve Kit shipclass=150 it's designed for efficiency and

it's designed for efficiency and convenience

For use with KAPPA-40/TS 55/TS

Also available in heights of 11" and 12

1-1/4" 100 Mesh Aluminum Head & Nylon Bowl Spraying Systems/Teejet Line Strainer

Oil should be heated to 140°F for maximum pump efficiency

9910-KIT1917 D30 Valve Kit shipclass=150 it's designed for efficiency andIf your pump isn't drawing any water in or the flow is irregular you may have a check valve issue. The springs can become corroded and gummed up or it is possible the valve seats are pitted. The 9910 KIT1917 (AR1917) will replace all four check valve assemblies as well as the o rings to create a seal to have your pump back up and running. Hypro Pentair is no longer distributing the 9910 series of diaphragm pumps, components, and related parts.