Drain Cap Compatible with: for Hayward swimming pool sand filter: pro series S140T, S144T, S164T, S166T, S180T, S210T, S220T, S220T2, S230T, S244T, S244T2, S270T, S270T2, S310T2, S360T2 pro series plus S311SX, S311SXV, S360SX high rate S170TSCPE, S190TSCPE, S190TSCPFT, S190TSCPT. Replacement Part Number: for Hayward SX180HG. Please double check your part number before you order. Durable: The cap, made of sturdy plastic, comes with rubber gasket and tough thread. To keep your pool water from leaking, just screw the drain cap assembly to your pool filter. Colour:Black Material:plastic Size:Inner diameter 1.18inch, outside diameter 1.57inch Package Contents: 2 * pool Sand Filter Drain Cap 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.