VEVOR Sand Filter, 20-Inch, 50 GPM Above Inground Swimming Pool Sand Filter System, with 7-Way Multi-Port Valve, Backwash, Rinse, Recirculate, Waste, Winter, Closed Modes, for Above In Ground Pools

this is a top-mounted sand filter. The air inside the filter can be vented along with the water flow through the tank head piping, so there’s no need to install a separate vent pipe.

we recommend 176 lbs of sand with a diameter of 0.5-0.8mm. Regarding the operation of the product, it is recommended to read the manual in detail before use.

You have two options for reference: 1. Two PDG500 units (20-inch filters) with two 1HP water pumps. 2. Two PDG650 units (24-inch filters) with two 1.5HP water pumps.

Hello, the 24-inch sand filter is suitable. Our model is slightly larger than standard, which makes it a perfect fit for your pool. Product Code: YYCSLQ24INCHECK8H001V0 If this answer does not resolve your issue, please contact us again for assistance.

Please note that this is for reference only; adjust the size based on the actual installation results. Hello, if the filter bag is used for cleaning cotton balls, we recommend a bag size of 40 × 50 cm for 3 kg of cotton balls. If this answer does not resolve your current issue, please contact us again for assistance.

Hello, the size of the filter bag primarily depends on the amount of filter media used. The standard configuration is as follows: place the bag flat on the bottom of the sand filter tank, ensuring the filter media remains loose and evenly covers the manifold (octopus). For 3 kg of filter media, we recommend using a filter bag measuring approximately 500 × 700 mm