Essential Washers
1 x Fibre Washer for the Water Level Plug (3/16" Internal Dia)
1 x Fibre Washer for the Safety Valve (Between the Safety Valve and Boiler, 1/4" Internal Dia)
1 x Washer for the Whistle (Between the Whistle and Boiler, 1/4" Internal Dia)
1 x Washer for the top of the Safety Valve (3mm Internal, 6mm External, 1.5mm Thick)
1 x Washer for the bottom of the whistle