{"product_id":"castair-c-frs34","title":"Castair C-FRS34","description":"\u003ch2\u003eCastair C-FRS34 — 3\/4\" Filter\/Regulator Combo, 250 PSI, 160 CFM\u003c\/h2\u003e\n\n\u003cp\u003eThe C-FRS34 is a 3\/4-inch NPT standard-size combination filter\/regulator from Castair. It is the mid-range unit in the FRS lineup — larger than the 1\/2-inch C-FRS12 for shops that run multiple tools or have higher-flow needs, and a step below the 1-inch C-FRS10 that goes on the largest main feeds. If your shop runs a 3\/4-inch main air line, this is the filter\/regulator that belongs on it.\u003c\/p\u003e\n\n\u003cp\u003eThe C-FRS34 delivers 160 CFM flow capacity at up to 250 PSI inlet pressure, with 5-micron particulate filtration and an integrated gauge. It handles the output of most mid-size commercial and industrial compressors and covers multi-station installations where the main distribution line is 3\/4-inch pipe.\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 Blocks pipe scale, rust, and solid contamination from reaching downstream tools and equipment. Critical for spray guns, air-operated cylinders, and any equipment with tight tolerances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Pressure Regulator:\u003c\/strong\u003e Holds downstream pressure steady regardless of fluctuations in tank pressure. Set it once — it maintains your target pressure through draw cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge Included:\u003c\/strong\u003e Downstream pressure visible at the unit. No additional fittings or gauges needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.5 oz Bowl:\u003c\/strong\u003e Captures liquid water and oil condensate. Manual drain as standard; automatic float drain available as an add-on for continuous unmanned operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/4\" NPT Female Connections:\u003c\/strong\u003e Standard threads, no adapters needed for 3\/4-inch 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\u003eMain line installation immediately downstream of the compressor tank and any aftercooler or refrigerated dryer.\u003c\/li\u003e\n\u003cli\u003eCan serve as the prefilter ahead of a Castair C-CF34 coalescing filter when oil aerosol removal is also required.\u003c\/li\u003e\n\u003cli\u003eIdeal for auto body shops, fabrication shops, and production environments running 3\/4-inch main lines with multiple drops.\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 — single-tool, light-duty 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 shop setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-FRS34 (3\/4\" Std.):\u003c\/strong\u003e 250 PSI max, 160 CFM — mid-size shops, 3\/4-inch main lines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC-FRS10 (1\" Std.):\u003c\/strong\u003e 250 PSI max, 180 CFM — high-output main lines, multiple stations\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-FRS34 is sized for 3\/4-inch installations. If your main line is 1\/2-inch, the C-FRS12 is the right fit — running a 3\/4-inch unit on a 1\/2-inch line costs more and adds unnecessary bulk. If you are running 1-inch pipe with high simultaneous tool demand, step up to the C-FRS10.\u003c\/p\u003e\n\n\u003cp\u003eFiltration only without regulation? Look at the C-FS34. Regulation only without a filter bowl? Look at the C-RS34 — note that C-RS34 is not listed in the standard Castair lineup, so contact us for availability. The combo unit makes the most sense when you want both functions in a single housing at the lowest installed cost.\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-FRS34\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Size:\u003c\/strong\u003e 3\/4\" 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 160 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 air system components since 2016. Call 866-217-0063 and we will confirm the right filter\/regulator size for your specific line and compressor — no guesswork, no upsell. Free shipping on qualifying orders, full manufacturer warranty, free technical support on every order.\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":53342525391061,"sku":"C-FRS34","price":245.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/C-FRS34.jpg?v=1772674985","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-c-frs34","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}