{"product_id":"castair-c-frs12","title":"Castair C-FRS12","description":"\u003ch2\u003eCastair C-FRS12 — 1\/2\" Filter\/Regulator Combo, 250 PSI, 120 CFM\u003c\/h2\u003e\n\n\u003cp\u003eThe C-FRS12 is a 1\/2-inch NPT standard-size combination filter\/regulator from Castair, built for the most common air system installation size in garages, small shops, and commercial settings. It pairs a 5-micron particulate filter with a built-in regulator and pressure gauge in one compact body — giving you filtration and pressure control in one connection point instead of two separate components.\u003c\/p\u003e\n\n\u003cp\u003eAt 120 CFM flow capacity with a 250 PSI maximum inlet pressure, the C-FRS12 handles the output of most single-unit shop compressors feeding a 1\/2-inch main line. It is the right choice for point-of-use installation at a workstation or on the primary feed of a smaller shop air system. If you are running a 3\/4-inch or 1-inch main line with higher demand, step up to the C-FRS34 or C-FRS10.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Unit Does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Micron Particulate Filtration:\u003c\/strong\u003e Removes pipe scale, rust, and solid debris before they reach air tools, spray guns, and air-operated equipment — extends tool life and prevents fouling of sensitive components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Pressure Regulation:\u003c\/strong\u003e Maintains consistent downstream pressure regardless of pressure swings in the supply tank. Tools with rated inlet pressures below your line pressure need a regulator — this gives you that in the same housing as the filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge Included:\u003c\/strong\u003e Live downstream pressure display. You set it once, and you can confirm it anytime without a separate gauge installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.5 oz Bowl:\u003c\/strong\u003e Collects liquid water and oil carryover from the compressed air stream. Drain manually or add an automatic float drain for unmanned operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/2\" NPT Female Connections:\u003c\/strong\u003e Standard threading — fits directly to pipe or fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere It Fits in the Air System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall downstream of the compressor tank and any aftercooler or dryer, on the main feed or at individual workstation drops.\u003c\/li\u003e\n\u003cli\u003eWorks as a prefilter ahead of a Castair coalescing filter when oil aerosol removal is also needed. The C-CF12 is the 1\/2-inch coalescer.\u003c\/li\u003e\n\u003cli\u003eCommon installation: main line filter\/regulator set at 90 PSI feeding spray booths, body shops, or production lines where consistent pressure matters as much as cleanliness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCastair Filter\/Regulator Lineup\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-FRM14 (1\/4\" Mini):\u003c\/strong\u003e 150 PSI max, 38 CFM — light-duty single-tool drops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-FRS12 (1\/2\" Std.):\u003c\/strong\u003e 250 PSI max, 120 CFM — most garage and small commercial installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-FRS34 (3\/4\" Std.):\u003c\/strong\u003e 250 PSI max, 160 CFM — larger shops with moderate multi-tool demand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-FRS10 (1\" Std.):\u003c\/strong\u003e 250 PSI max, 180 CFM — high-output main lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Choose This vs. Stepping Up or Down\u003c\/h3\u003e\n\u003cp\u003eThe C-FRS12 covers most single-station and small shop applications on 1\/2-inch lines. If you are running multiple tools simultaneously off a 1\/2-inch feed and hitting pressure drop across the filter at peak demand, you may need to upsize the main line — the filter is not the bottleneck, the pipe is. If your main line is 3\/4-inch or 1-inch, use the corresponding larger filter\/regulator from the start.\u003c\/p\u003e\n\n\u003cp\u003eNeed filtration only without a regulator? Look at the C-FS12. Need a regulator only without the filter bowl? The C-RS12 is the 1\/2-inch regulator. The combo makes sense when you want both functions in one connection point.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e C-FRS12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Size:\u003c\/strong\u003e 1\/2\" NPT Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e NPT Female Inlet and Outlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Inlet Pressure:\u003c\/strong\u003e 250 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rating:\u003c\/strong\u003e 120 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration Grade:\u003c\/strong\u003e 5-Micron Particulate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBowl Capacity:\u003c\/strong\u003e 8.5 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge:\u003c\/strong\u003e Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Castair, Spicer, Minnesota\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cp\u003eWe have sold and supported Castair equipment since 2016. Call us at 866-217-0063 and we will tell you exactly which size filter\/regulator fits your installation — no upsell, just the right answer. Free shipping on qualifying orders, full manufacturer warranty, free tech support. If you are setting up or expanding your shop air system, we have the knowledge to help you get it right the first time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342525292757,"sku":"C-FRS12","price":245.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/C-FRS12.jpg?v=1772674983","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-c-frs12","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}