WILDEN AIR DIAPHRAGM PUMP 02-3150-20. The item “WILDEN AIR DIAPHRAGM PUMP 02-3150-20″ is in sale since Friday, October 13, 2017. This item is in the category “Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Other Pumps”. The seller is “selectsurplus” and is located in Warren, Michigan. This item can be shipped worldwide.