ALLEGRO - HIGH PRESSURE COOLER W/ BELT - 4000-01

This valve regulates the amount of air to the helmet and adjusts the air 25 degrees cooler than the Breathing Air for use in hot environments.
Effective, low-cost solution
No moving parts
Cools compressed air by 25° F (-3.8° C)
Lightweight
Made from durable plastic
Quick-connect (Rectus style) fitting