Thank you for seeking help from the PlumbersStock team. A water heater gas valve, such as this Bradford White 265-46181-01, controls the pilot light and the water temperature. We're sorry but the information requested is currently not available. We have contacted the manufacturer and hope to hear from them soon. You may leave your email address below so we can contact you as soon as we receive the answer. According to the manual, this natural gas valve is designed for the following models: MI30T*F(BN,CX,SX), MI30S*F(BN,CX,SX), MI303T*F(BN,CX,SX), MI40T*F(BN,CX,SX), MI403S*F(BN,CX,SX), MI404T*F(BN,CX,SX), MI503*F(BN,CX,SX), MI50L*F(BN,CX,SX), MI504S*F(BN,CX,SX), MI60T*F(BN,CX,SX), M1XR403S*F(BN,CX,SX), M2XR504T*F(BN,CX,SX), M430T*F(BN,CX,SX), M4403S*F(BN,CX,SX), and M440T*F(BN,CX,SX). If this may be of help, here is the Service Manual of the compatible gas water heaters mentioned. Thank you for visiting PlumbersStock.com!