WHALE Original Replacement Part. Main PCB 770.215 To Suit Whale Space Heaters Mk2, Mk3 & Mk4 that don't have a Reset Button. For Use with the following models SETSH2212A, SETSH2212D, SH2201, SH2202B, SH2211B, SH2212B, SH2212BR, SH4312B, SH4312BMH, SH4312MB, SI4312B, SI4312IB, SI4132R & SL4312IR Also to Suit Whale Internal Water Heater with Blue Plastic Front Cover ( 8L & 13L ) For use with the following models: WH0802B, WH0802BR, WH0822B, WH0822BR, WH1302B, WH1302BR, WH1312B, WI0802B, WI0802BR, WL0802R