Suburban Mfg Water Heater Burner Orifice For Sw Series Nozzle #61. It is compatible with Suburban's SW-series models. Nozzle Number: 61. Material: Brass. Includes a 90 day limited warranty. Features of Suburban Mfg 180260 Water Heater Burner Orifice For Sw Series Nozzle #61 Designed for use with RV water heaters Compatible with Suburban's SW-series models Nozzle Size: #61 Material: Brass 90 day limited warranty Package Contents: Suburban Mfg 180260 Water Heater Burner Orifice For Sw Series Nozzle #61 Suburban Mfg 180260: Water Heater Burner Orifice For Sw Series Nozzle #61