These are premium swimming pool filters, made of material, they are wear-resistant, safe and durable, they prevent the hair, residue from going into the sewer. Simple design with exquisite detail makes them practical. you can clean them easily. Features -Color: Assorted Color -Material: Plastic -Size: 19.5x16x16cm/7.67x6.3x6.3inches -Filter Set 300 per cent Above Ground Swimming Pool Circulation Filter Pump Water Pump HS-630. - Made of material, durable and practical. - The design of the product is ergonomic and easy to use - The product is small in size and easy to install - This product is suitable for most swimming pools, including private pools. Operation instructions - Remember: people in the water can not use the filter pump; The filter pump must be used in the case of water, otherwise it will damage or burn out the internal components of the filter pump - To extend the life of the filter pump, use it for a maximum of 4 to 6 hours per day (remember not to be operated in the pool).Overuse may cause overheating or motor burn out. - The filter pump must be placed vertically and smoothly. - Before each use, check to make sure all hoses are clamped, check to make sure plug caps on inner wall are open and filters are properly installed. - If the filter pump air resistance phenomenon, there is a pressure reducing on the top, gently turn the counterclockwise;When a small amount of water comes out, tighten immediately and the filter pump can be fully filled with water again. Cleaning and maintenance - The filter cartridge in the filter pump should be replaced approximately every three weeks, depending on the time of day, number of users, etc. - Cleaning the filter cartridge regularly can improve the efficiency of the filter pump and prolong the filter cartridge life. - Before cleaning the cartridge, you must first disconnect the power supply to avoid the risk of a dangerous shock. - Open the air bonnet counterclockwise to release the air. - Clean the filter chamber rubber pad. - Rinse the filter cartridge directly with water.