Pneumatic Relay, Air Capacity 8 scfh, Air Consumption 29 scim, Application Pneumatic Control System, Body Material Glass-Filled Nylon, Branch Port Connection Size 1/4 in, Branch Port Connection Type Barbed Hose, Control Action Direct Acting/Reverse Acting, Control Signal Proportional, Differential Adjustability Adjustable, Maximum Safe Air Pressure 30 psi, Mounting Style Surface