{"product_id":"castair-refrigerated-air-dryer-115-1-60v-71cfm-37degf-1-npt-in-out-connections-rd71-15k","title":"Castair Refrigerated Air Dryer 115\/1\/60V 71CFM@37degF 1\" NPT In\/Out Connections RD71-15K","description":"\u003cp\u003eThe Castair RD71-15K is a refrigerated compressed air dryer rated at 71 CFM at a 37°F pressure dew point. It is built for mid-size shops running 15–20 HP compressors — production environments, multi-bay auto shops, large body shops, or fabrication operations where air demand regularly pushes past 60 CFM. Unlike the smaller RD25 and RD59 units, the RD71-15K uses 1\" NPT connections, matching the larger plumbing typical of 15–20 HP installations.\u003c\/p\u003e\n\n\u003cp\u003eSame proven Castair refrigeration design: R134a or R407c refrigerant, stainless steel heat exchanger, automatic demand drain, and a simple dew point indicator. No computer boards to fail, no programming, no proprietary control systems to troubleshoot at 7 AM when you are trying to get the shop running.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigeration cycle:\u003c\/strong\u003e Compressed air flows through the stainless steel dual-function heat exchanger. Freon cools the air to a 37°F dew point, condensing moisture into liquid that is ejected by the automatic drain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-function heat exchanger:\u003c\/strong\u003e Pre-cools incoming hot air using outgoing cold air — improves efficiency and extends refrigerant component life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic demand drain:\u003c\/strong\u003e Only activates when condensate is present. Conserves compressed air versus timer-based drains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick connect refrigerant port:\u003c\/strong\u003e Allows refrigerant recharge without full disassembly — a practical service feature for older units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated capacity:\u003c\/strong\u003e 71 CFM at 37°F dew point (86 CFM at 50°F dew point)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e 1\" NPT inlet and outlet — sized for 15–20 HP compressor installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 115V \/ 1-phase \/ 60Hz with 9-foot three-prong power cord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 7.5 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R134a \/ R407c (environmentally compliant)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum inlet pressure:\u003c\/strong\u003e 232 PSIG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat exchanger:\u003c\/strong\u003e Stainless steel for long service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDew point indicator:\u003c\/strong\u003e Simple visual indicator, no computer logic required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL listed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 110 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W×D×H):\u003c\/strong\u003e 11.8\" × 23.7\" × 22.8\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCastair RD71-15K refrigerated air dryer unit\u003c\/li\u003e\n\u003cli\u003e9-foot three-prong 115V power cord (pre-installed)\u003c\/li\u003e\n\u003cli\u003eRefrigerant pre-charged at the factory (R134a\/R407c)\u003c\/li\u003e\n\u003cli\u003e1\" NPT inlet\/outlet connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: A properly sized pre-filter is required for warranty. Use a Castair 1\" particulate filter (C-FS10) upstream of the dryer. For compressors without an aftercooler, install one before the dryer to maintain full rated capacity. The Castair #DP100 bypass kit is available for this unit — plumbed rather than mounted directly on the compressor.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Configurations \/ Upgrade Path\u003c\/h2\u003e\n\u003cp\u003eWhere the RD71-15K fits in the Castair refrigerated dryer lineup:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD25-6K — 25 CFM @ 37°F:\u003c\/strong\u003e 3\/4\" NPT, 57 lbs. For 5–7.5 HP compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD59-11K — 59 CFM @ 37°F:\u003c\/strong\u003e 3\/4\" NPT, 73 lbs. For 10–15 HP compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD71-15K — 71 CFM @ 37°F:\u003c\/strong\u003e This unit. 1\" NPT, 110 lbs. For 15–20 HP compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD113-60K — 107 CFM @ 37°F:\u003c\/strong\u003e 1\" NPT, 119 lbs. For 20–25 HP compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD161-37K — 161 CFM @ 37°F:\u003c\/strong\u003e 1-1\/2\" NPT, 137 lbs. For high-demand shops.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLarger custom sizes — call for pricing.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen Does a Shop Need This vs. Stepping Up or Down\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe RD71-15K is the right dryer if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour compressor is 15–20 HP and produces 60–71 CFM peak demand\u003c\/li\u003e\n\u003cli\u003eYour air supply lines are already 1\" — the larger connection size eliminates the reducer hardware required with 3\/4\" dryers\u003c\/li\u003e\n\u003cli\u003eYou run a multi-bay auto shop, a dedicated paint booth plus tool air, or a manufacturing operation with multiple pneumatic stations\u003c\/li\u003e\n\u003cli\u003eYou have 115V single-phase power (three-phase not required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep up to the RD113-60K if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour compressor produces more than 71 CFM peak demand\u003c\/li\u003e\n\u003cli\u003eYou are running back-to-back production cycles or multiple spray guns simultaneously at full CFM draw\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCapacity note:\u003c\/strong\u003e Ratings are based on 100°F inlet air, 100°F ambient, 100 PSI. At 150°F inlet air temperature, effective capacity drops to approximately 39 CFM. An aftercooler between the compressor and dryer is strongly recommended if your compressor runs without one.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RD71-15K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 37°F dew point:\u003c\/strong\u003e 71\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 50°F dew point:\u003c\/strong\u003e 86\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet\/Outlet Connection:\u003c\/strong\u003e 1\" NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage \/ Phase \/ Hz:\u003c\/strong\u003e 115V \/ 1-phase \/ 60Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 7.5 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R134a \/ R407c\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Inlet Pressure:\u003c\/strong\u003e 232 PSIG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Dew Point:\u003c\/strong\u003e 37°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger:\u003c\/strong\u003e Stainless steel, dual-function single body\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrain Type:\u003c\/strong\u003e Automatic, demand-based\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Cord:\u003c\/strong\u003e 9 ft, three-prong 115V plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 110 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W×D×H):\u003c\/strong\u003e 11.8\" × 23.7\" × 22.8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL Listed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cp\u003eWe specialize in compressed air equipment and have since 2016. We stock Castair refrigerated dryers and can help you confirm the right model for your compressor output — including whether you need an aftercooler upstream to maintain full rated capacity. Free shipping on qualifying orders, free pre-sale technical support, and the full Castair manufacturer warranty.\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":53342589911253,"sku":"RD71-15K","price":4059.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/REFRIGERATED-COMPRESSED-AIR-DRYERS_d52k5k_dc3e17f0-7739-4157-b31f-7dfa4b517435.jpg?v=1772652869","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-refrigerated-air-dryer-115-1-60v-71cfm-37degf-1-npt-in-out-connections-rd71-15k","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}