Size: Drain strainer inner dimension: . 40mm/1.57inch; Drain strainer outer dimension: . 56mm/2.2inch; Applicable aperture: 50mm Drain Fitting: Drain fitting for stainless steel sinks with a 50mm drain hole, height of 37 mm. The outlet pipe has a interface inner dimension of 20.5mm/0.8inch, interface outer dimension of 27mm/1.06 inch, can be screwed to most spiral hose Good Sealing: The drain fitting is fixed and sealed on the sink with two seals (foam rubber, rubber). Once attached, the drain can be connected to a waste water hose using a wire hose clamp Application: The drain fitting can be used in caravan, motorhome, boat Material: ABS+Metal Colour:As Shown Package Contents: 1 x Stainless Steel Drain Strainer 1 x Sealing Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.