This listing is for a Pack of 1 Important Sizing Note - Most plumbing products are measured using BSP thread dimensions which measure 1/4 inch larger than that stated, therefore this 1 1/2 inch BSP thread actually measures 1 3/4 Inchs in diameter. 1 1/2" BSP Thread which measures approximately 48mm diameter, ready to accept 1 1/2 inch waste trap This main body of this bath waste is manufactured from high quality polypropylene fixed on the underside of the bath with a 70mm diameter stainless steel flange, eliminating the problem of chrome plating deterioration. It includes a nylon poly plug and chrome chain and chromed plastic overflow grill and chain anchor. This WHO73SS version is slotted and has the external overflow grill and assembly included and has a 70mm diameter stainless steel flange. Sealing washers are included, Weight: 0.66 Pounds, Manufacturer: Macdee