{"product_id":"rk7300-cart-3p-pressure-balance-valve-cartridge-zurn-z-7300-shower","title":"RK7300-CART-3P Pressure Balance Cartridge for Zurn Z-7300","description":"\u003ch2\u003eRK7300-CART-3P Shower Pressure Balance Valve Cartridge – Compatible with Zurn Z-7300, Z-7301 \u0026amp; Z-7302\u003c\/h2\u003e\n\n\u003cp\u003eRestore consistent water temperature and steady flow to your shower or tub with this precision-engineered \u003cstrong\u003eRK7300-CART-3P Pressure Balance Valve Cartridge\u003c\/strong\u003e. Designed as a direct replacement for Zurn Z-7300, Z-7301, and Z-7302 handle faucets and tub\/shower valves, this cartridge delivers a seamless drop-in fit — no special tools or complicated plumbing required. Anti-leak PTFE tape is included for a secure, drip-free installation right out of the box.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Materials:\u003c\/strong\u003e Constructed from a copper alloy (brass) body combined with ceramic discs, durable rubber seals, and ABS components — engineered for longevity, waterproof performance, and resistance to warping or deformation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise Compatibility:\u003c\/strong\u003e Direct replacement cartridge for model RK7300-CART-3P; compatible with Zurn Z-7300, Z-7301, and Z-7302 single-handle faucets, tub valves, and shower valves.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Balancing Technology:\u003c\/strong\u003e Maintains a consistent water temperature during use by automatically balancing hot and cold water pressure — ideal for safer, more comfortable showers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e40mm Diameter Valve Core:\u003c\/strong\u003e Precision-sized at 40mm in diameter to ensure a snug, leak-free fit within compatible Zurn valve bodies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy DIY Installation:\u003c\/strong\u003e Simply remove the old cartridge and insert the new one — no specialized plumbing expertise needed. The included PTFE (raw) tape helps seal connections and prevent leaks from the start.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong Service Life:\u003c\/strong\u003e High-quality construction ensures reliable performance over time, reducing the need for frequent replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RK7300-CART-3P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Valves:\u003c\/strong\u003e Zurn Z-7300, Z-7301, Z-7302\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValve Core Diameter:\u003c\/strong\u003e 40mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper Alloy (Brass), Ceramic, Rubber, ABS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pressure Balancing Cartridge\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × RK7300-CART-3P Shower Pressure Balance Valve Cartridge\u003c\/li\u003e\n  \u003cli\u003e1 × PTFE Anti-Leak Tape\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Need\u003c\/h3\u003e\n\u003cp\u003eLooking to upgrade or fix other fixtures in your bathroom? Check out these related items:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-1-4-inch-adjustable-washbasin-siphon-trap-leak-proof-silicone-seal\"\u003e1-1\/4\" Adjustable Washbasin Siphon Trap | Leak-Proof Silicone\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-inch-threaded-brass-ball-valve-water-gas-oil-flow-control\"\u003e1-Inch Threaded Brass Ball Valve – Water, Gas \u0026amp; Oil Flow Control\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHelpful Resource\u003c\/h3\u003e\n\u003cp\u003eFor guidance on plumbing safety standards and best practices for home plumbing fixtures, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Sterling_Plumbing\" target=\"_blank\" rel=\"noopener\"\u003eSterling Plumbing\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What faucet models is the RK7300-CART-3P pressure balance cartridge compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This cartridge is a direct replacement designed for Zurn Z-7300, Z-7301, and Z-7302 single-handle faucets, tub valves, and shower valves. Always verify your existing valve model number before purchasing to ensure compatibility.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is installation of the RK7300-CART-3P cartridge a DIY-friendly task?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The cartridge is designed for straightforward replacement — simply shut off the water supply, remove the old cartridge from your Zurn valve body, and insert the new one. The included PTFE anti-leak tape helps seal the connection. Basic plumbing knowledge is sufficient; no special tools are required.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does a pressure balance valve cartridge do?\u003c\/h4\u003e\n\u003cp\u003eA: A pressure balance valve cartridge automatically adjusts and balances the ratio of hot and cold water pressure within your shower or tub valve. This keeps your water temperature consistent even when other fixtures in your home are in use (such as flushing a toilet), ensuring a comfortable and steady shower experience.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the diameter of the RK7300-CART-3P valve core?\u003c\/h4\u003e\n\u003cp\u003eA: The pressure balance valve core measures 40mm in diameter, engineered to fit precisely within compatible Zurn Z-7300 series valve bodies for a secure, leak-free seal.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What faucet models is the RK7300-CART-3P pressure balance cartridge compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This cartridge is a direct replacement designed for Zurn Z-7300, Z-7301, and Z-7302 single-handle faucets, tub valves, and shower valves. 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This keeps your water temperature consistent even when other fixtures in your home are in use (such as flushing a toilet), ensuring a comfortable and steady shower experience.\"}}, {\"@type\": \"Question\", \"name\": \"What is the diameter of the RK7300-CART-3P valve core?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The pressure balance valve core measures 40mm in diameter, engineered to fit precisely within compatible Zurn Z-7300 series valve bodies for a secure, leak-free seal.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Bathroom Accessories\", \"item\": \"https:\/\/oasis-select.com\/collections\/bathroom-accessories\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"RK7300-CART-3P Pressure Balance Cartridge for Zurn Z-7300\", \"item\": \"https:\/\/oasis-select.com\/products\/rk7300-cart-3p-pressure-balance-valve-cartridge-zurn-z-7300-shower\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Default Title","offer_id":47748073881705,"sku":"\u003cnone\u003e","price":68.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sa86f70829cff4cbda42cce911c0f62262.webp?v=1783081093","url":"https:\/\/oasis-select.com\/products\/rk7300-cart-3p-pressure-balance-valve-cartridge-zurn-z-7300-shower","provider":"Oasis Select","version":"1.0","type":"link"}