{"product_id":"precision-hydronics-php-100018750-4-copper-zone-header-18-outlet","title":"Precision Hydronics php-100018750-4 Copper Zone Header 18 Outlet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION HYDRONICS php-100018750-4 is an 18-outlet copper zone header designed for hydronic heating distribution systems. Built from copper with a 4-inch header pipe, it accepts 1-inch by 3\/4-inch port connections and runs 72 inches in length to accommodate large multi-zone installations. Plain end connections allow field-cut and soldered integration into existing piping. Hydronic heating contractors and mechanical plumbers install this header as the central distribution point between the boiler loop and individual zone circuits, routing heated water to multiple zones from a single, organized manifold assembly.\u003c\/p\u003e\u003cp\u003eThis zone header is suited for commercial and large residential hydronic heating systems where multiple zones must be served from a single supply or return header. Its 72-inch length and 18-port configuration make it appropriate for multi-zone radiant floor systems, baseboard convector arrays, and fan coil distribution in larger buildings. The copper construction is compatible with standard hydronic system fluids including water and glycol-water mixtures commonly used in freeze-prone applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e18 outlet ports for high-zone-count hydronic distribution in a single header assembly\u003c\/li\u003e\n\u003cli\u003eCopper body construction for durability and compatibility with hydronic system fluids\u003c\/li\u003e\n\u003cli\u003e4-inch header pipe size supports high flow capacity across all zones\u003c\/li\u003e\n\u003cli\u003e1-inch by 3\/4-inch port sizing accommodates common hydronic branch piping\u003c\/li\u003e\n\u003cli\u003e72-inch overall length provides spacing for large multi-zone layouts\u003c\/li\u003e\n\u003cli\u003ePlain end connections allow soldered field termination to match existing piping runs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style hydronic zone header for use in multi-zone hydronic heating distribution systems requiring an 18-port copper manifold with 4-inch header pipe and 1-inch by 3\/4-inch port connections.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or mechanical contractor familiar with hydronic heating systems and applicable codes including the International Plumbing Code (IPC) and International Mechanical Code (IMC). Shut down and depressurize the hydronic system before cutting into any supply or return lines. Plain end connections require proper soldering technique and flux application per copper piping best practices. Support the header adequately with approved pipe hangers to prevent stress on branch connections after installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Pipe Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Size\u003c\/strong\u003e: 1 inch x 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Ports\u003c\/strong\u003e: 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 72 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: Plain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Hydronic Manifold\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PRECISION HYDRONICS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: php-100018750-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION HYDRONICS","offers":[{"title":"Default Title","offer_id":51467741626674,"sku":"PHP-100018750-4","price":269.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313946381.jpg?v=1783912158","url":"https:\/\/voomisupply.com\/products\/precision-hydronics-php-100018750-4-copper-zone-header-18-outlet","provider":"Voomi Supply","version":"1.0","type":"link"}