Maxitrol 3" Straight Flow Thru Regulator RV111-3, Up To 17,000,000 BTUMaxitrol's Original Straight-Thru-Flow Design Meet Your Needs For High Capacities At Low Inlet Pressures. Models Are Designed For 1/2 PSI Rate Pressure Under The Ansi Standard For Gas Pressure Regulators. They Are Main Burner Only, Non-Lockup Type. Use Only Where Downstream Controls Can Operate At Line Pressure. Made in the USA. Product Specifications BRANDMaxitrol WIDTH INCHES13-2/5 HEIGHT INCHES15-1/10 PIPE SIZE INCHES3 WEIGHT LBS19 COLORSilver BTU17000000 MAX INLET PRESSURE (PSI)1 OUTLET PRESSURE IN W.C. INCHES3 - 6 CAPACITY CUBIC FEET PER HOUR17000 LISTING, RATING, CERTIFICATIONcCSAus LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERRV111-3