For Koenders Windmills Generations 2 – 6 (with black compressor bodies).
Also fits Koenders EL2 Electric Aerators.
Includes 1 Diaphragm, 2 Insert Valves, Top Valve Repair pk, Rubber Washer and Driver Bit.
Note: Double Diaphragm units require 2 kits for a complete repair.
Regular maintenance kits include a rubber diaphragm. Deluxe kits include a higher durability diaphragm made of Garlock material.