Manufacturer Name: Robertshaw Product Number: 700-057 OEM Part Number: 700-057 Product Description: 1" 4"Wc Nat 720Cfh Univgasvlv Weight:3.06lbs/1387.99g The Robertshaw 700-057 is a powerful and versatile 1-inch natural gas valve with a water column design, ideal for precise gas pressure regulation in various residential and commercial HVAC applications. https://www.partshnc.com/700-057-robertshaw-1-4-wc-nat-720cfh-univgasvlv