MacAllister spare parts and accessories. Mac Allister pressure washers were sold by B&Q. Various electric and petrol models were available. The most common being the MAC1 MAC2 MAC3 and MAC4. MacAllister is a B&Q own brand making power tools for a range of uses. At Spares Giant we have access to some of the consumable power washer parts only in order to keep your jet washer running. We stock spare parts for your MAC pressure washers including trigger guns, lances, hoses along with pump and valve kits. You can also order for quick delivery heating coils, capacitors and nozzles. Everything to maintain your hot or cold water MAC jet washer is available from Spares Giant.