{"product_id":"castair-35-cfm-21l-x-12w-x-27h-3-4-in-out-connections-free-standing-style-aftercooler","title":"Castair 35 CFM 21\"L X 12\"W X 27\"H 3\/4\" In\/Out Connections Free Standing Style Aftercooler","description":"\u003cp\u003eThe Castair FSAC35 is a free-standing air-cooled aftercooler rated for 35 CFM. It connects to the compressor discharge line and cools hot compressed air — which can exit a pump at up to 350 degrees F — back down to within 15 degrees of ambient temperature before it reaches your air system. That temperature drop removes up to 65% of the water that compression vaporizes and suspends in the air stream, reducing moisture in your tools, spray guns, and air lines significantly.\u003c\/p\u003e\n\n\u003ch2\u003eWhy an Aftercooler Matters\u003c\/h2\u003e\n\u003cp\u003eHere is the physics: compression heats air and keeps moisture suspended as vapor. When that air cools in your distribution lines and drops below the dew point, that vapor condenses into liquid water — inside your piping, your tools, and your spray equipment. An aftercooler forces that condensation to happen in one controlled location (the aftercooler and its drain) rather than randomly throughout your air system.\u003c\/p\u003e\n\u003cp\u003eCastair's spec: every 20-degree temperature reduction removes 50% of suspended moisture. The FSAC35 brings discharge air to within 15 degrees of ambient, which typically produces up to 65% total moisture reduction. For shops experiencing rust in air lines, water in spray guns, or tool corrosion, an aftercooler is the correct fix — not more filters downstream.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FSAC35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Free standing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Capacity:\u003c\/strong\u003e 35 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet\/Outlet Connection:\u003c\/strong\u003e 3\/4\" NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (L x W x H):\u003c\/strong\u003e 21\" x 12\" x 27\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 30 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure:\u003c\/strong\u003e 250 PSIG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature:\u003c\/strong\u003e 350 degrees F inlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Basis:\u003c\/strong\u003e 250-degree F inlet air temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e 115V, 1-phase, 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Floor or suspended; horizontal or vertical airflow\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFree Standing vs. Belt Guard Style at 35 CFM\u003c\/h2\u003e\n\u003cp\u003eCastair makes aftercoolers in two mounting styles for the 35 CFM range:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBGAC1\u003c\/strong\u003e — Belt guard style, 35 CFM, 3\/4\" connections, 18\" x 10.5\", 8 lbs. Mounts on or near the compressor. Available loose (BGAC1) or pre-mounted (BGAC1M).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC35\u003c\/strong\u003e — Free standing, 35 CFM, 3\/4\" NPT, 21x12x27\", 30 lbs. Installs independently of the compressor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your compressor is accessible and the belt guard area works for plumbing, the BGAC1 is simpler and lighter. The FSAC35 works for installations where the compressor is in an enclosure, a separate room, or where remote mounting is needed.\u003c\/p\u003e\n\n\u003ch2\u003eFree Standing Aftercooler Lineup\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC35\u003c\/strong\u003e — 35 CFM, 3\/4\" NPT, 21x12x27\", 30 lbs (this model)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC50\u003c\/strong\u003e — 50 CFM, 1\" NPT, 21x12x31\", 40 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC75\u003c\/strong\u003e — 75 CFM, 1\" NPT, 27x15x36\", 70 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC100\u003c\/strong\u003e — 100 CFM, 1-1\/4\" NPT, 26x16x42\", 80 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC120\u003c\/strong\u003e — 120 CFM, 1-1\/2\" NPT, 43.5x14.75x46.5\", 140 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC150\u003c\/strong\u003e — 150 CFM, 1-1\/2\" NPT, 43.5x14.75x46.5\", 145 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC240\u003c\/strong\u003e — 240 CFM, 2\" NPT, 200 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC300\u003c\/strong\u003e — 300 CFM, 2\" NPT, 300 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSizing and Buying Guidance\u003c\/h2\u003e\n\u003cp\u003eSize the aftercooler to your compressor's actual CFM output at the discharge port — not motor HP and not free-air-delivery at 0 PSI.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC35 is correct\u003c\/strong\u003e for compressors delivering up to 35 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep up to FSAC50\u003c\/strong\u003e if your compressor delivers 35-50 CFM — never undersize an aftercooler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsider BGAC1\u003c\/strong\u003e instead if the compressor is accessible and you can mount to the belt guard area — same 35 CFM rating, much lighter at 8 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOptional Accessories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter with auto drain\u003c\/strong\u003e — Available on all free-standing models; drains condensate automatically\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature control valve #86816\u003c\/strong\u003e — Prevents overcooling in cold ambient conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h3\u003e\n\u003cp\u003eOEM Diagnostic Tools has supplied professional shop equipment and components since 2016. We stock Castair aftercoolers so shops can solve moisture problems with properly sized equipment. Free shipping on qualifying orders, free tech support at 866-217-0063, and full manufacturer warranty. Call us if you need help sizing the correct aftercooler for your compressor's CFM output.\u003c\/p\u003e\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":53342549082325,"sku":"FSAC35","price":1631.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/air-cooled-aftercoolers-3-300x200_b3d66825-9330-4ccd-bb26-a4104b9d45bc.jpg?v=1772652676","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-35-cfm-21l-x-12w-x-27h-3-4-in-out-connections-free-standing-style-aftercooler","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}