Pump Plunger Cup for Plastic Pump-Up Sprayers NA2254 Containers & Measuring Cups • New plunger guide bushing

• New plunger guide bushing (patent pending)

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Pump Plunger Cup for Plastic Pump-Up Sprayers NA2254 Containers & Measuring Cups • New plunger guide bushingProduct Overview The pump plunger cup for plastic pump up sprayers. It is the seal on the plunger that pushes air into the tank on each stroke. Wear, and the Greasing Nobody Does The plunger cup is a wearing part by design, and the single biggest thing that shortens its life is running it dry. Hydro Force's own AS16A documentation calls for the piston cup to be greased periodically, and supplies grease in the service kit for exactly that reason. A cup