{"product_id":"ashcroft-91546xll-pressure-gauge-4-5-in-dial-0-300-psi","title":"Ashcroft 91546XLL Pressure Gauge 4.5 in Dial 0-300 Psi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ASHCROFT 91546XLL is an analog pressure gauge built for accurate pressure measurement in demanding trade applications. Featuring a 4.5-inch dial and a rear flange mount configuration, this gauge delivers a clear, readable display suited for panel or wall installations. Wetted parts are stainless steel, making this unit appropriate for systems where corrosion resistance matters. The aluminum case keeps overall weight down at 2.5 pounds. With an accuracy rating of 0.5 percent of scale across a 0 to 300 psi range, this gauge meets the precision requirements of HVAC, plumbing, and industrial service work.\u003c\/p\u003e\n\u003cp\u003eThis gauge is suited for residential and commercial installations where a rear-mounted, flange-style panel gauge is required. Typical applications include boiler systems, compressed air lines, water supply monitoring, and hydronic heating circuits. The rear flange mount allows secure panel mounting with the dial face flush to the surface, a common requirement in mechanical rooms and equipment enclosures. The no-fill, dry-dial construction makes it straightforward to install in environments where a liquid-filled gauge is not specified.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4.5-inch analog dial for easy field reading at distance\u003c\/li\u003e\n  \u003cli\u003e0 to 300 psi pressure range covers a wide range of trade applications\u003c\/li\u003e\n  \u003cli\u003e0.5 percent of scale accuracy for reliable, repeatable readings\u003c\/li\u003e\n  \u003cli\u003eStainless steel wetted parts for corrosion resistance in water and air service\u003c\/li\u003e\n  \u003cli\u003eAluminum case construction reduces overall weight\u003c\/li\u003e\n  \u003cli\u003eRear flange mount design for secure panel installation\u003c\/li\u003e\n  \u003cli\u003eDry, no-fill dial — no liquid fill to contain or manage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style or direct-replacement analog pressure gauge for panel-mount applications in HVAC, plumbing, boiler, and compressed air systems requiring a 4.5-inch rear flange mount gauge with a 0 to 300 psi range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber, HVAC technician, or qualified mechanical contractor. Isolate and depressurize the system completely before removing any existing gauge or installing this unit. Use appropriate thread sealant on the connection fitting per applicable IPC or IFGC requirements, and verify the thread size matches the port before installation. Do not overtighten the connection; hand-snug plus a controlled turn with a wrench is the standard practice for gauge fittings.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Range\u003c\/strong\u003e: 0 to 300 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.5 percent of scale\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Type\u003c\/strong\u003e: Analog\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Rear Flange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid Filled\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWetted Parts Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.5 pounds\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: ASHCROFT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 91546XLL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ASHCROFT","offers":[{"title":"Default Title","offer_id":51539131138354,"sku":"91546XLL","price":726.91,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95f8bcdc83bc5f5350f7bcbd810e2402_417faf36-d947-41f8-818b-18f4172276d4.jpg?v=1785835111","url":"https:\/\/voomisupply.com\/products\/ashcroft-91546xll-pressure-gauge-4-5-in-dial-0-300-psi","provider":"Voomi Supply","version":"1.0","type":"link"}