{"product_id":"amtrol-4pro4swt-in-line-steel-well-tank-4-4-gallons","title":"Amtrol 4PRO4SWT In-line Steel Well Tank 4.4 Gallons","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AMTROL 4PRO4SWT is a pre-pressurized in-line well tank designed for residential potable water systems. Rated at 125 psi working pressure, it uses a heavy-duty diaphragm and a polypropylene liner to separate system water from the air charge, maintaining consistent pressure without waterlogging. A stainless steel system connection made from 304L material resists corrosion in aggressive water conditions. The welded deep-drawn steel shell provides structural rigidity that head-and-shell designs cannot match. A licensed plumber typically installs this tank as part of a well pump pressure system. The 4.4-gallon capacity suits residential well applications where space is limited and inline mounting is preferred.\u003c\/p\u003e\n\u003cp\u003eThis tank is suited for residential well water pressure systems where an inline configuration is required. The patented Fresh Water Turbulator agitates incoming water to reduce stagnation inside the vessel, a meaningful advantage in low-usage or seasonal applications. A projection-welded air stem eliminates potential leak paths to preserve the factory precharge. The welded steel base keeps the tank stable without the wobble associated with plastic stands or clamp-on metal designs. Lead-free construction with no brass parts or lead-bearing components makes it suitable for potable water installations subject to lead-free compliance requirements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e125 psi working pressure rating for standard residential well systems\u003c\/li\u003e\n  \u003cli\u003e304L stainless steel system connection for corrosion resistance in aggressive water\u003c\/li\u003e\n  \u003cli\u003ePolypropylene liner meets NSF International Standard 61 with no sprayed-on coatings\u003c\/li\u003e\n  \u003cli\u003ePatented Fresh Water Turbulator reduces stagnation by agitating incoming water\u003c\/li\u003e\n  \u003cli\u003eProjection-welded air stem eliminates gaskets and threaded fittings at the air valve\u003c\/li\u003e\n  \u003cli\u003eLead-free construction with no brass parts or lead-bearing components\u003c\/li\u003e\n  \u003cli\u003eWelded steel base resists rotation and wobble during operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style pre-pressurized diaphragm well tank for residential potable water pressure systems requiring an inline steel tank configuration.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the well pump and relieve all system pressure before disconnecting any existing tank or fittings. Verify the factory precharge pressure matches the system cut-in pressure before placing the tank in service. Do not exceed the 125 psi working pressure rating under any operating condition.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Pressure\u003c\/strong\u003e: 125 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank Capacity\u003c\/strong\u003e: 4.4 gallons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell Material\u003c\/strong\u003e: Deep-drawn welded steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Connection Material\u003c\/strong\u003e: 304L stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiner Material\u003c\/strong\u003e: Polypropylene\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiaphragm\u003c\/strong\u003e: Heavy-duty pro-grade material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBase\u003c\/strong\u003e: Welded steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead-Free Construction\u003c\/strong\u003e: Yes, no brass or lead-bearing components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNSF Certification\u003c\/strong\u003e: NSF International Standard 61 (liner)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 5-year limited\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AMTROL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4PRO4SWT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AMTROL","offers":[{"title":"Default Title","offer_id":51267846897970,"sku":"4PRO4SWT","price":137.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/308913641.jpg?v=1780692014","url":"https:\/\/voomisupply.com\/products\/amtrol-4pro4swt-in-line-steel-well-tank-4-4-gallons","provider":"Voomi Supply","version":"1.0","type":"link"}