Diaphragm and Seal,50 Square In, Fits Brand Johnson Controls, For Use With Mfr. Model Number MP84, MP85, MP86, MP87, Includes One Seal, 5/8 in Inside Diameter, 7/8 inOutside Diameter 1/8 in, One Plastic Sleeve, 41/64 in Inside Diameter, One Diaphragm, 50 sq in Effective Area, For Use With MP84, MP85, MP86, and MP87 Actuators