Manufacturer Name: Maxitrol Product Number: RV81-1 1/4 OEM Part Number: RV81-1 1/4 Product Description: 1.25"Csa Reg 1/2#Maxin 3-6"Out Weight:4.46lbs/2023.02g The Maxitrol RV81-1 1/4 is a powerful 1.25-inch CSA-approved regulator that ensures perfect gas pressure management in heating, ventilation, and air conditioning systems.Maintaining the effective functioning of gas-based ... https://www.partshnc.com/rv81-1-14-maxitrol-125-csa-reg-12maxin-3-6-out