Suburban Mfg Furnace Limit Switch For P 40. It is compatible with Suburban's P-40 models. Includes a 90 day limited warranty. Features of Suburban Mfg 230825 Furnace Limit Switch For P 40 Designed for use with RV furnaces Compatible with Suburban's P-40 models Includes one limit switch per package 90 day limited warranty Package Contents: Suburban Mfg 230825 Furnace Limit Switch For P 40 Suburban Mfg 230825: Furnace Limit Switch For P 40