CM-5085RPTE Single Gang, 2-3/8" Pneumatic Mushroom Pushbutton with Aluminum Faceplate CM-5000 Series heavy duty mushroom push buttons are specially designed and manufactured to meet the stringent demands of high traffic exit control applications. Buttons are 2-3/8" (60mm) diameter and available in either green, red or blue. Switches feature 1/4" thick brushed aluminum single gang faceplates. Door Pushbutton, 1-Gang, Pneumatic, Mushroom, DPST, 12/24 VDC, 10A at 30 VDC Contact, 1 to 60 Second, 2-3/8" Diameter, Brushed Aluminum Plate, Red