The Stainless Steel Spring Is Part Of The Piston Set Providing Reliable Performance And Durability. It Helps Maintain Consistent Pressure And Efficient Water Flow In Pump Systems. Designed For Long Lasting Use With Resistance To Corrosion And Wear. Ensures Smooth Operation By Absorbing Pressure Fluctuations And Maintaining Stability. Suitable For Various Applications Including Agricultural And Industrial Water Systems. Constructed To Withstand Demanding Conditions And Extend The Lifespan Of The Pump Components. Easy To Install And Replace As Part Of Routine Maintenance. Compatible With Jooste As60 Cylinder Assemblies For Optimal Functionality And Efficiency.