John Blue DP-318793 3/4" Solid Shaft Kit spraygun The unique design includes Viton

The unique design includes Viton conical valves that produce high flow rates

Dimensions:  183" L x 64" W x 64" H

which has everything you require to replace faulty diaphragm parts

Durand Wayland Silverline 745 500 Gallon Air Sprayer w/ Centrifugal Pump (36" Fan)

it can deliver a maximum of 600 RPM

John Blue DP-318793 3/4" Solid Shaft Kit spraygun The unique design includes VitonJohn Blue pumps are widely used in industrial and agricultural applications. This solid shaft kit enhances the pump's performance and offers users greater control over operations. The kit includes all necessary hardware, including a 3 4" solid male shaft. Quickly and easily adapt to many pump models with this handy collection.