Stop those leaks

Tubes+Orings+Springs+Washers
Made from 6061 tubing with dual Viton O rings and a large I.D. of .875 for excellent push rod clearance. These fit the widest motors. If your motor is a short stroke you can shave off a 1/2" and they will fit perfectly.
£65 including postage to the uk , wont cost much to EU etc
