Citystores® 4 Pack Appliance Waste Trap Blanking Cap & Washer Blank 32mm | Stop Ends for Washing Machine, Dishwasher & P-Trap Waste Pipe Seals

4 x 32mm Appliance trap blanking Cap and washer Ideal for use in most rough Plumbing environments Heating and plumbing accessories commonly used to cap off waste traps when removing washing machines, dishwashers or other appliances Plastic 1 inch BSP cap and washer, use to blank off unused washing machine or dishwasher waste connection (usually on the side of a P trap, under your kitchen sink). British Standard Pipe Thread sizes don't match up with what you'd measure on the scale of a ruler The male 1 inch BSP thread that this item fits onto measures about 33.25mm (1-1/4 inch) on the scale of a ruler. NO PART of this cap measures 1 inch with a ruler (see pictures). It's NOT the size you need to blank off an unused washing machine water supply, that's usually 3/4 inch BSP