Purrco SC 1610 25 PSI Precision Pressure Monitor On/Off Timing Control

Dwyer N13L Pressure Gage Measures inches/Water with 25PSI MAX
Purrco Sequence Board with on/off timing
in Hoffman Plastic Cabinet type 4.4 x 12,13  (11x13x6")
on time .05-.35 Second
off time 0-180 sec