{"product_id":"ashcroft-80257xll-pressure-gauge-4-5-in-30-0-300-psi-rear-flange","title":"Ashcroft 80257XLL Pressure Gauge 4.5 in 30-0-300 Psi Rear Flange","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ASHCROFT 80257XLL is an analog pressure gauge designed for industrial and mechanical system monitoring where accurate, reliable pressure readings are essential. With a 4.5-inch dial and a compound pressure range of 30 inches Hg vacuum to 0 to 300 psi, this gauge provides clear readability across a wide measurement span. The wetted parts are stainless steel, making it suitable for use with mildly corrosive media. The aluminum case keeps overall weight low at 2.5 pounds. Accuracy is rated at 0.5 percent of scale. Licensed HVAC techs, plumbers, and pipefitters working on pressurized systems will find this gauge a practical fit for both service and permanent installation applications.\u003c\/p\u003e\n\u003cp\u003eThe 80257XLL is suited for residential and light commercial HVAC, plumbing, and mechanical system installations where a rear flange mount configuration is required. The rear flange mount allows the gauge to be panel-mounted or surface-mounted flush against a wall or enclosure, keeping the face visible and accessible. The 0.5-inch NPT rear connection threads directly into standard pipe fittings. The non-liquid-filled design is appropriate for environments where vibration is not a primary concern. This gauge is commonly installed on boiler systems, compressed air lines, water supply systems, and similar pressurized piping applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCompound pressure range: 30 inches Hg vacuum to 0 to 300 psi on a single dial\u003c\/li\u003e\n  \u003cli\u003e4.5-inch analog dial for easy reading at distance\u003c\/li\u003e\n  \u003cli\u003eStainless steel wetted parts resist corrosion from many common system fluids\u003c\/li\u003e\n  \u003cli\u003eAluminum case construction reduces overall weight\u003c\/li\u003e\n  \u003cli\u003eRear flange mount simplifies panel and surface installation\u003c\/li\u003e\n  \u003cli\u003e0.5 percent of scale accuracy for dependable pressure monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation analog pressure gauge for pressurized piping systems requiring a 0.5-inch NPT rear-mount connection and a 4.5-inch dial with compound pressure range capability.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed plumber, pipefitter, or HVAC technician. Depressurize and isolate the system completely before removing an existing gauge or threading in a new one. Apply appropriate thread sealant or PTFE tape to the NPT threads per local plumbing code requirements. Do not over-tighten the gauge connection, as this can damage the socket fitting or crack the case.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Range\u003c\/strong\u003e: 30 inches Hg to 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 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\u003eMount Type\u003c\/strong\u003e: Rear Flange\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\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\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: 80257XLL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ASHCROFT","offers":[{"title":"Default Title","offer_id":51541981135154,"sku":"80257XLL","price":746.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95f8bcdc83bc5f5350f7bcbd810e2402_491f81df-e7c4-40ea-9778-cffe745b91e1.jpg?v=1785888788","url":"https:\/\/voomisupply.com\/products\/ashcroft-80257xll-pressure-gauge-4-5-in-30-0-300-psi-rear-flange","provider":"Voomi Supply","version":"1.0","type":"link"}