{"product_id":"pentairmastertempmaxethermheatermanifoldkit300333k777070015pen777070015","title":"Pentair MasterTemp Max-E-Therm Heater Manifold Kit 300\/333K Replacement","description":"\u003cdiv\u003e\n\u003ch1\u003ePentair MasterTemp Max-E-Therm Heater Manifold Kit 300\/333K Replacement\u003c\/h1\u003e\n\u003ch2\u003eIntro\u003c\/h2\u003e\n\u003cp\u003eRestore peak efficiency to Sta-Rite Max-E-Therm 333 and Pentair MasterTemp pool heaters with this OEM replacement manifold kit. Designed by Pentair to align precisely with the heater’s port layout, gasket surfaces, and connection points, it delivers a reliable, long-lasting restoration. When the original manifold shows wear, cracking, or leaks, this kit provides a straightforward path back to steady heat delivery and minimal downtime.\u003c\/p\u003e \u003ch2\u003eList of Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExact compatibility with Sta-Rite Max-E-Therm 333 and Pentair MasterTemp heaters (300\/333K) — guarantees precise port spacing and sealing surfaces.\u003c\/li\u003e\n\u003cli\u003eDurable polymer body with brass fittings — resists corrosion and stands up to heat and water pressure for long life.\u003c\/li\u003e\n\u003cli\u003eMulti-port design mirrors the original layout — simplifies replacement and preserves proper water flow to the heat exchanger.\u003c\/li\u003e\n\u003cli\u003ePre-installed O-rings and gaskets — enables leak-free installation without sourcing additional parts.\u003c\/li\u003e\n\u003cli\u003eLeak-tested and pressure-rated — engineered to perform reliably in demanding residential pool systems.\u003c\/li\u003e\n\u003cli\u003eFast, tool-friendly installation — clear mounting points and standard fittings minimize downtime during service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFinal Thoughts\u003c\/h2\u003e\n\u003cp\u003eChoosing the Pentair manifold kit means OEM-precision, durable construction, and a smoother maintenance experience. It helps you restore consistent heating, reduce downtime, and protect your investment in pool comfort. Ready for a hassle-free replacement? Add to cart and get your pool heating back on track.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":51682663858493,"sku":"PEN777070015","price":708.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/3611\/6541\/files\/PEN777070015_0_0250e807-63c8-4e2d-91a2-5bba1c0f4669.png?v=1778226552","url":"https:\/\/www.duckiespoolsupply.com\/products\/pentairmastertempmaxethermheatermanifoldkit300333k777070015pen777070015","provider":"Duckies Pool Supply","version":"1.0","type":"link"}