{"product_id":"ashcroft-94539xll-pressure-gauge-4-5-in-dial-0-15-psi-rear-flange","title":"Ashcroft 94539XLL Pressure Gauge 4.5 in Dial 0-15 Psi Rear Flange","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ASHCROFT 94539XLL is an analog pressure gauge designed for accurate, reliable pressure measurement in industrial and mechanical systems. Featuring a 4.5-inch dial and a 0 to 15 psi range, it delivers 0.5 percent of scale accuracy, making it suitable for low-pressure monitoring applications. The thermoplastic case provides lightweight durability in environments where a non-liquid-filled gauge is appropriate. This gauge is installed by HVAC technicians, plumbers, and industrial maintenance professionals who need a clear, readable dial with solid mounting stability.\u003c\/p\u003e\n\u003cp\u003eThis gauge is well suited for residential and light commercial mechanical systems where low-pressure monitoring is required, including water service panels, boiler systems, compressed air lines, and similar low-pressure fluid or gas circuits. The rear flange mount configuration allows for panel or wall-surface mounting, keeping the dial face flush and fully visible. The 0.5-inch NPT threaded connection fits standard process ports commonly found in these applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4.5-inch analog dial for clear, at-a-distance readings\u003c\/li\u003e\n  \u003cli\u003e0 to 15 psi pressure range suited for low-pressure systems\u003c\/li\u003e\n  \u003cli\u003e0.5 percent of scale accuracy for reliable measurement\u003c\/li\u003e\n  \u003cli\u003eRear flange mount for panel or surface installation\u003c\/li\u003e\n  \u003cli\u003eThermoplastic case construction — lightweight and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eNon-liquid-filled design for standard dry-service environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation pressure gauge for low-pressure mechanical systems requiring a 4.5-inch dial, rear flange mount, and 0.5-inch NPT threaded connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePressure gauges of this type are installed by licensed plumbers, HVAC technicians, or qualified mechanical contractors. Shut off and depressurize the system fully before removing an existing gauge or installing a new one. Use appropriate thread sealant on the NPT connection and tighten to hand-tight plus a controlled number of turns — avoid over-tightening, which can crack a thermoplastic socket. Verify the system pressure range does not exceed the gauge rating before returning the system to service.\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 15 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 Type\u003c\/strong\u003e: Analog\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 0.5 inches NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Rear Flange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e: Thermoplastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid Filled\u003c\/strong\u003e: No\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: 94539XLL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ASHCROFT","offers":[{"title":"Default Title","offer_id":51542102901042,"sku":"94539XLL","price":324.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/760f8efc512ec2bc85a40aae2d63044d_ecd9ad91-ad6b-4ccd-85ff-95c51e7b1705.jpg?v=1785892116","url":"https:\/\/voomisupply.com\/products\/ashcroft-94539xll-pressure-gauge-4-5-in-dial-0-15-psi-rear-flange","provider":"Voomi Supply","version":"1.0","type":"link"}