Replacement SM-1 Synchronous Motor For Motorised Valve Acl Honeywell Synchron Replacement Synchronous Motor For Motorised Valve Acl Honeywell Synchron PRODUCT FEATURES Save replacing the whole 2-Port or 3Port Motorised Valve - DIY fit Easy replacement Save on expensive plumbers fees Central Heating system not working Fits... Was: £15.40 Now: £12.22 Add to basket The item has been added Ref: FTB593