{"product_id":"locking-knob-c751-c900-c1200-series","title":"Hayward Locking Knob (C751, C900, C1200 series)","description":"\u003cp\u003eThe Hayward CX900G is the locking knob for Star Clear Plus cartridge filters, models C751, C900 and C1200. It is also the knob on the Pro-Grid DE separation tank DE-900 and DE-1100. Genuine Hayward.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it looks like\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA black plastic four point star top with a brass stem molded into the bottom. The stem is 1-1\/2 in. long and carries two grooves, a small one at the bottom and a larger one toward the top. If your old knob matches that description, this is the part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOrder the seals with it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe knob o-ring, the washer and the E-ring are separate parts. A knob that has been leaking or spinning without locking usually needs its o-ring replaced at the same time.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48624965419220,"sku":"HAY-051-1464","price":40.66,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1d8f4df7-f2d9-41fe-8201-ea9db7e06384.png?v=1788656776","url":"https:\/\/www.activepoolsupply.com\/products\/locking-knob-c751-c900-c1200-series","provider":"Active Pool Supply","version":"1.0","type":"link"}