Honeywell PressureTrol Controllers, Modulating, 0-15 PSI, Multi-Mount

Honeywell L91A1037 PressureTrol® Controllers, Modulating, 0 psi to 15 psi. Modulating pressure operating control for regulation of liquid or air and other non-corrosive gases.

Features:
Use with steam, air, noncombustible gases, or other fluids non-corrosive to the brass or phos-bronze (300 psi models) bellows.
Do NOT use with combustible mediums or any medium chemically harmful to phos-bronze bellows (10-300 psi models) or brass bellows (all other pressure range models).