{"product_id":"hayward-cx400ba-filter-head-with-check-valve","title":"Hayward CX400BA Filter Head with Check Valve","description":"\u003cp\u003e\u003cstrong\u003eWhat This Part Is Used For\u003c\/strong\u003e\u003cbr\u003e The Hayward CX400BA Filter Head with Check Valve serves as the top housing assembly for compatible filter systems. The integrated check valve helps control water flow direction. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy This Part Matters\u003c\/strong\u003e\u003cbr\u003e A cracked head or failed check valve can lead to leaks or backflow issues. Replacing it restores proper sealing and controlled flow. This supports consistent filtration performance. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features and Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number CX400BA\u003c\/li\u003e\n\u003cli\u003eFilter head with integrated check valve\u003c\/li\u003e\n\u003cli\u003eFor compatible Hayward filter systems\u003c\/li\u003e\n\u003cli\u003eTop housing assembly component\u003c\/li\u003e\n\u003cli\u003eSupports controlled water flow\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eInstallation and Fitment Guidance\u003c\/strong\u003e\u003cbr\u003e Shut off the pump and relieve pressure before removal. Inspect tank O-ring and locking hardware during installation. Confirm by manufacturer part number before ordering. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout the Hayward Brand\u003c\/strong\u003e\u003cbr\u003e Hayward manufactures cartridge filter systems with serviceable housing assemblies. Their replacement heads are widely supported in field service. Pool professionals rely on genuine Hayward components for proper fit. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon Service Context\u003c\/strong\u003e\u003cbr\u003e Often replaced after freeze damage or housing cracks. Also common when check valves fail. \u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52050070241554,"sku":"CX400BA","price":139.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/HPPCX400BA_0.jpg?v=1771890943","url":"https:\/\/www.aquaterrabackyard.com\/products\/hayward-cx400ba-filter-head-with-check-valve","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}