Diaphragm For Backflow Protector [Pack 2]
The backflow protector contains this part, but this is the diaphragm only if you want to reuse the casing of the backflow protector you have. Pack of 2 replacement backflow protector diaphragms.
Replacement diaphragms for your standard backflow protector. Sold as a pack of two to make double pumping easier.
Happy with the pump, they have decent suction , just that the postage is pricey.
Took a while to arrive but got here