XStream™ size for an XStream™ clean. Once you see the new XStream™ filtration system (for Above Ground pools) from Hayward ®, you'll be hooked. Its massive size and incredible performance means years of trouble-free filtration. It has an extra large glass reinforced, non-corrosive filtration tank that is built to handle large amounts of dirt and debris. Includes a quick-release, high capacity air relief valve and Easy-Lok™ ring design for quick access in a single turn. Hayward X-Stream pool cartridge filter system is designed for longer filter cycles and much less cleaning. Hayward element cartridge filter system maintains pool water longer than other Hayward pool filters.