1inch Wilden Model -20 air operated double diaphragm pump with Polypropylene body and Teflon diaphragm.
Rubber seals, balls.
Please note that this pump has suffered some UV damage, and has some damage such as mounting holes broken, pipe attachment points, etc.
This item would be good for purchase for it's Teflon diaphragm, seals and balls, air pump, etc for use in another pump, or for using to build a pump.