Diaphragm kits return the Evolution Aqua Airtech pumps to the peak of performance! Linear diaphragm air pumps typically need to be replaced every 12-18 months. If you are frequently replacing diaphragm kits, your pump is likely experiencing excessive back-pressure (i.e. it is pumping more air than the air stone can put out). Unlike water pumps, where an oversized pump is unlikely to cause a problem, oversizing air pumps is a frequent cause of failure. Feel free to contact us for more information. SKU Description UPC Code Compatible Air Pumps AIRPUMP70D Diaphragm Kit 5060088873922 40 Lpm, 70 Lpm, 75 Lpm AIRPUMP95D 5060088873953 80Lpm, 95 Lpm AIRPUMP130D 5060088873960 130 Lpm, 150 Lpm 1000-085 3/8" Air Ball Valve (FPT to FPT) 5060088871911 1000-080 3/8" BSP Male Stud Connector 5060088871898 Documentation Evolution Aqua Airtech Air Pump Diaphragm Kits and Parts — Instruction Manual (PDF)
