289H-42 (Fisher) Valve-Relief 1 Fnpt Ai 4-15 Psi

Valve-Relief 1" Fnpt Ai 4-15 Psi Diaphragm Relief Valves Are Installed Downstream Of A Large Second Stage Regulator Like The S202G Or S302G. The Larger Diaphragm In This Relief Valve Provides Extremely Sensitive Operation. | Fisher | 289H-42