The Gomma diaphragm is the cost effective option on these AR pumps used in place of other versions of diaphragms 550086 , 550085 & 550081
Annovi Reverberi diaphragm suit the following AR pump used by Croplands
AR70, 115, 125, 135, 145, 160, 185, 250, 280, 370, 500
20 Bar Max
Price is for X1 Diaphragm only!