Before You Buy: Measure your pool drain cover before placing an order, compare our product size chart to see if our product fits the bill. (As pictured) Made of high quality ABS plastic. Cover diameter (18.5cm/7.28inch), base diameter: 20.6cm/8.11inch, screw hole center distance: 17cm/6.692inch. A smooth surface that allows flow to the drain while allowing any pool cleaner to move easily. Fits most types of floor pool cleaners and fits most raised suction caps. Get ready for pool season with preventive maintenance on your pool equipment. Replace the suction cap. Snaps together easily and sits on top of the pool's main drain. About after-sales: If you have any questions when purchasing this product, you are welcome to contact us. If you are not satisfied with our products, please contact us immediately. Customer satisfaction is the driving force of our company's operation. Thank you. Made from hight quality ABS plastic. Suitable for most types of in ground pool cleaners and fits over most raised suction outlet covers. Allows for flow to the drain while allowing a smooth surface for any pool cleaner to travel over easily. Get ready for the pool season with preventative maintained on your pool equipment. Suction outlet cover replacement.Easily Snaps Together and Sits on Top of the Pool's Main Drain