{"product_id":"castair-c-frs10","title":"Castair C-FRS10","description":"\u003ch2\u003eCastair C-FRS10 — 1\" Filter\/Regulator Combo, 250 PSI, 180 CFM\u003c\/h2\u003e\n\n\u003cp\u003eThe C-FRS10 is a 1-inch NPT standard-size combination filter\/regulator from Castair, a Minnesota-based cast iron air compressor manufacturer. This unit combines a 5-micron particulate filter with a built-in pressure regulator and gauge in one compact housing — fewer connection points, simpler installation, and less potential for leaks than running a separate filter and regulator in series.\u003c\/p\u003e\n\n\u003cp\u003eAt 1-inch NPT with a 180 CFM flow rating and 250 PSI maximum inlet pressure, this is a main-line unit. It belongs on the primary feed coming out of a large industrial or commercial compressor, or on a high-demand branch serving multiple stations. If your installation is 3\/4-inch or smaller, look at the C-FRS34 or C-FRS12 — sizing this unit too large for the line costs more money and takes up more wall space without any benefit.\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 Catches pipe scale, rust particles, and airborne debris before they reach tools, cylinders, and air-operated equipment downstream.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Pressure Regulation:\u003c\/strong\u003e Downstream pressure is set and held at the regulator, protecting equipment from swings in tank pressure during heavy draw cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge Included:\u003c\/strong\u003e Live downstream pressure reading right at the unit — no separate gauge tee needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11 oz Bowl:\u003c\/strong\u003e Collects liquid water and condensed oil carryover. Manual drain standard. For high-cycle or high-humidity environments, add an automatic float drain to eliminate manual drain intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\" NPT Female Inlet\/Outlet:\u003c\/strong\u003e Standard threading — connects directly to pipe or fittings without adapters.\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 refrigerated dryer, upstream of distribution or point-of-use equipment.\u003c\/li\u003e\n\u003cli\u003eFor oil aerosol removal, add a Castair coalescing filter upstream. The C-CF10 is the 1-inch coalescer. Coalescing filters require a 5-micron prefilter — the C-FRS10 in front of the C-CF10 satisfies that requirement while also giving you line pressure regulation.\u003c\/li\u003e\n\u003cli\u003eThe 5-micron element removes solid particulate. It is not a substitute for a dryer or aftercooler — address bulk liquid and moisture upstream first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCastair Filter\/Regulator Lineup — Match Size to Your Line\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-FRM14 (1\/4\" Mini):\u003c\/strong\u003e 150 PSI max, 38 CFM, 1.5 oz bowl — 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, 8.5 oz bowl — 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, 8.5 oz bowl — 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, 11 oz bowl — high-output main lines feeding multiple stations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Choose This vs. Stepping Down\u003c\/h3\u003e\n\u003cp\u003eMatch the filter\/regulator to the actual pipe size in your installation. If your main feed is 1-inch pipe, the C-FRS10 is right. If your installation is 3\/4-inch throughout, the C-FRS34 is the correct call. Running a 1-inch unit on a 3\/4-inch line adds cost and wall space with no performance gain.\u003c\/p\u003e\n\n\u003cp\u003eIf you need filtration only without pressure regulation, look at the C-FS10. If regulation only without a filter bowl is sufficient, look at the C-RS10. The combo unit earns its place when you want both functions in one housing with one fewer inline joint.\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-FRS10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Size:\u003c\/strong\u003e 1\" 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 180 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 11 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 stocked and sold Castair equipment since 2016 and know their full product line. When you call us, you get a straight answer on which size and configuration fits your specific system — not a guess from someone reading the same spec sheet you already found online. We offer free shipping on qualifying orders, full manufacturer warranty on all Castair products, and free technical support at 866-217-0063. If you are building or expanding a shop air system and want honest guidance, we are here for that conversation.\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":53342525227221,"sku":"C-FRS10","price":539.6,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-c-frs10","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}