{"product_id":"star-clear-locking-knob-o-ring","title":"Hayward Star Clear Locking Knob O-Ring","description":"\u003cp\u003eHayward CX250Z7 is the small o-ring that seals under the locking knob on a Star Clear or Star-Clear II cartridge filter dome lid. It is one of the parts that gets stretched and pinched every time the lid comes off for a cartridge clean, and one of the first places a filter starts to weep.\u003c\/p\u003e\u003cp\u003eThe same ring covers a wide span of the range. On the original Star Clear line it fits the C-250, C-500, C-750 and C-1000. On the Star-Clear II line it fits the C800, C1100 and C1500.\u003c\/p\u003e\u003cp\u003eThis is the genuine Hayward ring, so it seats at the right compression instead of squeezing out or leaving the knob loose. Wipe the groove clean, add a thin film of silicone based o-ring lubricant, and set the ring in dry hands before the knob goes back on.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48627949338836,"sku":"HAY-051-1766","price":2.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_665911b6-bb60-4272-be71-4360da1924a0.png?v=1788730661","url":"https:\/\/www.activepoolsupply.com\/products\/star-clear-locking-knob-o-ring","provider":"Active Pool Supply","version":"1.0","type":"link"}