Snap Acting Pneumatic Relay, Converts a Proportional Air Pressure Change from a Controller to a Positive ( Two Position ) Pressure Change, Manual Adjustable Switching Pressure, Proportinal to 2 Position Converter, 1 Psi Maximum Differential Pressure Range, Includes Bracket and 1 1/2" Mounting Clip for Mounting Relay to Wall or Panel, 0-140 Degree Temperature Range, 5-95% RH Operating Humidity Range, 5/32" Barb Fittings, Adjustable 3-15 Psi Setpoint Range

Pneumatic Switching Relay, Block, Divert or Bleed Pneumatic Air Lines when Pilot Pressure is Changed, SPDT Relay, 3-7 Psi Switching, 5/32" Barb Fittings, 0-140 Degree Temperature Range, 5-95% RH Operating Humidity Range

Pneumatic Switching Relay, Block, Divert or Bleed Pneumatic Air Lines when Pilot Pressure is Changed, SPDT Relay, 13-17 Psi Switching, 5/32" Barb Fittings, 0-140 Degree Temperature Range, 5-95% RH Operating Humidity Range