Lightweight and easy to use manufactured from highest quality engineered plastic 05 litres per stroke 30 litres per minute approx threaded 2 and 1 12 bsp thread piece telescopic riser extends to 36 914mm viton seal weight 1kg suitable for light oils paraffin diesel alcohol water water based chemicals mild solvents anti freeze acid and alkali solutions strong acid strong alkali solutions nitric acid etc ryton body and components stainless steel piston rod