{"product_id":"joker-valve-78-c253","title":"Raritan Joker Valve – Marine Toilet Discharge Check Valve","description":"\u003ch2\u003eKeep Your Marine Head Flowing — and Odour-Free\u003c\/h2\u003e\u003cp\u003eThe Raritan Joker Valve is a one-way check valve designed for use in marine toilet (head) discharge systems. It allows waste to flow out while preventing backflow of water, odours, and waste into the bowl — a critical function for any properly operating marine sanitation system.\u003c\/p\u003e\u003cp\u003eMade from durable, flexible rubber, the joker valve compresses to allow discharge and then seals shut, maintaining a reliable one-way flow path. Over time, these valves wear, harden, or deform, causing slow pumping, backflow, or persistent odours. Replacing the joker valve is one of the first and most effective steps in restoring a sluggish or leaking marine head.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne-way check valve — allows discharge, prevents backflow\u003c\/li\u003e\n\u003cli\u003eFlexible rubber construction for reliable sealing and long service life\u003c\/li\u003e\n\u003cli\u003eDirect replacement for compatible Raritan marine toilet models\u003c\/li\u003e\n\u003cli\u003eEliminates odours and backflow caused by a worn or hardened valve\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight — easy to install with basic hand tools\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 78-C253\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Flexible rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 45 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Marine toilet discharge system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e This is the first part to replace when a marine head is pumping hard, draining slowly, or allowing odours or water to seep back into the bowl. A worn joker valve is the most common cause of these symptoms and is far less expensive to replace than a full pump rebuild. Confirm compatibility with your specific Raritan toilet model before ordering — joker valve dimensions vary between models.\u003c\/p\u003e\u003cp\u003eFor related marine sanitation fittings, see our \u003ca href=\"\/products\/7927064592420\"\u003eAnti-Vent Loop Connection – 2\" Marine Toilet Fitting\u003c\/a\u003e and \u003ca href=\"\/products\/7927064559652\"\u003eAnti-Vent Loop Connection – 1\" Marine Toilet Fitting\u003c\/a\u003e. If you're considering a full head replacement, the \u003ca href=\"\/products\/11120008921124\"\u003eJabsco Quiet Flush E2 Compact Marine Toilet\u003c\/a\u003e is a popular upgrade option.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51215081439268,"sku":"78-C253","price":47.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/78-C253.jpg?v=1786150080","url":"https:\/\/marisolmarine.com\/products\/joker-valve-78-c253","provider":"Marisol Marine Company","version":"1.0","type":"link"}