IWP Piston Seal Kit

Seal and ring kit for IWP's upgraded hydraulic piston (also called hydraulic biscuit). The IWP piston upgrades Flow's original-style hydraulic piston by providing better stability in stroking, extending life of the low pressure cylinder and high pressure seals. Warm/expand the rings in extremely hot water prior to fitting on the hydraulic piston. To put the piston with these rings back into the cylinder (without damage!), a ring compressor or the IWP hydraulic cylinder installation tool must be used.