Our new jet kit gets you started quickly with your DIY Pelton/turgo turbine project. 5 jets, jet retaining cap and PVC jet sleeve. Retaining cap sandwiches the PVC sleeve through the casing wall. A 50mm BPS ball valve can then be attached to your pipe fittings. We approve these jets for use up to100m of head. At heads below 70m they have excellent durability. Spare jet pack inserts available. You can make a range of sixes to suite your changing river flows. Jets only take a few minutes to swap out making changing over easy and simple even for the non technical members of the family.