{"product_id":"locking-ring","title":"Val-Pak Locking Ring V38-137","description":"\u003cp\u003eThe Val-Pak V38-137 is the cam and ramp locking ring for the Ultra-Flow pump trap. Pentair lists the same part as 39105000, and it is manufactured by Val-Pak.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich trap it suits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt fits American Products, now Pentair, Ultra-Flow pool pump traps manufactured after 1994. Traps built before that changeover used a metal band clamp around the lid rim, which is a different arrangement, so check the pump before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe locking ring is what pulls the lid down onto the trap and holds the o-ring against its seat. A ring that has gone brittle, cracked at a ramp, or lost the thread on a cam cannot hold that clamping force, and the pump starts sucking air at the lid instead of holding prime. That shows up as a trap that will not fill, air in the lid, or a pump that loses prime overnight.\u003c\/p\u003e\u003cp\u003eThe ring is supplied on its own. If the pump has been leaking air at the lid for a while, it is worth checking the lid o-ring and its seat at the same time.\u003c\/p\u003e","brand":"Val-pak","offers":[{"title":"Default Title","offer_id":48629532819668,"sku":"VAL-101-2999","price":68.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_3706d7ef-32aa-44f0-8934-6f20d5b37fa9.jpg?v=1788766044","url":"https:\/\/www.activepoolsupply.com\/products\/locking-ring","provider":"Active Pool Supply","version":"1.0","type":"link"}