Furnace Micro Switch Sail Switch. Works on Models: NT-30/34 M/S/SP, NT-25/30/35 K, P-30S, SF-20/25/30/35, SF-20F/25F/30F/35F, SF-42/42F (Below Serial Number 924201894).
12VDC Furnace Gas Valve. Works on Models: SF-20/25/30/35/42, SF-20F/25F/30F/35F/42F (Below Serial Number 921403846); 351901; This works on Model#: 24 VAC-P-40
Replaces all Suburban water heater and furnace circuit boards including 520871, 520814, 520820. Will not replace 24VAC model boards. 3 YEAR MANUFACTURERS WARRANTY.