Maxitrol 1" Modulator Valve Hi/Low

Features: Valves designed to operate on indirect fired atmospheric burner applications Minimum input pressure is set using a minimum adjustment spring - the valves do not use a bypass Used in applications where the minimum input pressure to burner is between 2.0" and 4.5" w.c. Maximum obtainable outlet pressure is 7.0" w.c. above minimum input pressure Note: This product should be installed by a licensed gas fitter.