🔒 Secure Your Flow with Confidence! Handles up to 1,400,000 BTU/hr, perfect for demanding applications. Built to last with a screened vent size of 3/4 NPT. Designed for optimal performance with a 9-13" W.C outlet pressure range. Compatible with 3/4" FNPT for easy installation. Emergency inlet pressure rated at 50 psig ensures reliability. 1,400,000 BTU/hr 9-13" W.C 3/4" x 3/4" NPT The R622-DFF 2nd Stage Regulator is engineered for high-capacity performance, featuring a robust design that supports a maximum inlet pressure of 10 psig and an emergency inlet pressure of 50 psig. With a versatile 3/4" x 3/4" NPT connection and an impressive outlet pressure range of 9 to 13 inches W.C, this regulator is the ideal choice for professionals seeking reliability and efficiency in their gas management systems.