Specification Brand : PoolPal USA BulletPoint : Swimming Pool Main Drain Adapter - aids in attaching cover to pool main drain BulletPoint1 : Compatible with Hayward Pro Series High Rate Sand Filter Models S210SV, S244SV ; Super Star-clear Cartridge Filter Models C2000, C3000, C4000, C5000 ; Micro-Clear DE and Super Star-clear cartridge filters BulletPoint2 : Also Compatible with Hayward micro clear filters both resin and stainless steel ; Old style DE3620 , DE4800 , DE4820 , DE6020 , DELE-42056 Filter BulletPoint3 : Air Release Function:The air relief valve part DEX2400S allows you to release trapped air from the filter system. This function is crucial because air pockets can reduce filtration efficiency and lead to potential damage from excessive pressure buildup. Releasing air ensures smooth operation and optimal water flow. BulletPoint4 : Pressure Gauge Mounting:The air relief assembly provides a convenient location for attaching a pressure gauge. This is essential for monitoring filter pressure, allowing you to track when backwashing or cleaning is needed. A pressure gauge also helps in identifying potential issues with the system, such as blockages or leaks. BulletPoint5 : Compatibility and Durability :The pool filter pressure relief valve assembly is designed for compatible with Hayward DE filters, providing a reliable fit for your system. It is also made from durable materials, ensuring it can withstand regular use and exposure to the sunlight environment without deteriorating. Color : white (black and grey available) CompatibleDevices : Pool Cleaner CustomerPackageType : Standard Packaging Directions : 1. Orient the flat side of the valve for flow direction as illustrated. Confirm flow direction by blowing into it. If installed backwards, no ozone gas will flow, and water may back into ozone generator. 2. Install the valve in the correct flow direction to prevent spa water back-flow and protect the ozone generator. ExternallyAssignedProductIdentifier : 3494371095746 ExternallyAssignedProductIdentifier1 : 685450496605 ExternallyAssignedProductIdentifier2 : 0685450496605 ItemDisplayDimensions_Height : 4 inches ItemDisplayDimensions_Length : 13 inches ItemDisplayDimensions_Width : 13 inches ItemName : Swimming Pool Main Drain Adapter (White) - aids in attaching cover to pool main drain ItemPackageDimensions_Height : 33.1 centimeters ItemPackageDimensions_Length : 9.2 centimeters ItemPackageDimensions_Width : 29.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : swimming-pool-and-spa-replacement-parts ItemTypeName : Sand Filter Pressure Gauge Adapter Manufacturer : PoolPal USA Material : Plastic ModelName : Air Relief Assembly ModelNumber : MDA-1 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : MDA-1 Pattern : Xtreme Multilayer Filter Bag PowerSourceType : No ProductBenefit : removes debris from water ProductDescription : The swimming pool Main Drain Adapter (color - WHITE) aids in attaching the main drain cover; it sets in the main drain pot (3 thumb screws provided) of your swimming pool; the main drain cover is set on top and can now be screwed into the MDA. This is needed when the screws break off or rot out in the screw holes, preventing you from putting your VGB approved safety cover back on. Intended for residential pools. (2 sets of stainless steel cover screws provided). Also available in grey and black. CLICK LINK TO VIEW VIDEO: https://www.youtube.com/watch?v=cysgW33ITlY ProductSiteLaunchDate : 2021-05-14T17:33:12.328Z Size : One Size SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1