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Air Compressors

Compressed air experts say the 4th utility is compressed air and one of the most efficient ways to deliver this utility would be installing a rotary screw air compressors. Purchasing a rotary air compressor couldn't be any easier than it is today. Compressor manufacturers have made these machines where buying, installing and servicing them can all be done by the customer.


There are a variety of different configurations of rotary air compressor and there are various reasons for choosing the one for your compressed air application:

Efficiency of Screw Compressor - These screw air compressors are very efficient when sized properly. Talk to one of our compressed air experts about how to size a rotary screw air compressor for your system and which control system would be best for your compressed air application:

  • Load/No Load Controls are typically standard on all types of rotary screw air compressors. We generally recommend 4 gallons of storage per every 1 cfm and at a minimum 2 gallons of storage per every 1 cfm of output.
  • Modulation Controls are typically installed on compressors where a continuous flow of air is required. Modulation can be very inefficient when applied to applications where the air demand is variable. For example, the BHP would be 89% when using modulation controls on a rotary screw air compressor where the air demand is 50%.
  • Variable Speed Drive Air Compressors Controls, VFD type controls are very efficient when sized correctly and very inefficient when misapplied. Contact one of our sales staff to explore this option.
Kaishan 5 HP Rotary Screw Air Compressor, 16 CFM, 230/1/60, PK-005A3F0S8U
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Save 36%
$6,330.00
$4,082.00
208/230/1/6028 FLA Voltage208-230/1/60 After CoolerIncluded Airend Warranty2 Year Warranty Standard Warranty1 Year Warranty
Kaishan 7.5 HP Rotary Screw Air Compressor, 22 CFM, 230/1/60, PK-7.5A3F0S8U
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Save 36%
$6,772.00
$4,345.00
208/230/1/6040 FLA Voltage208-230/1/60 After CoolerIncluded Airend Warranty2 Year Warranty Standard Warranty1 Year Warranty
Kaishan 5 HP Rotary Screw Air Compressor, 16 CFM, 230/1/60, 80 Gallon Tank, PK T-005A3F0S8U
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Save 35%
$6,866.00
$4,486.00
208/230/1/6028 FLA Voltage208-230/1/60 After CoolerIncluded Airend Warranty2 Year Warranty Standard Warranty1 Year Warranty
Kaishan 7.5 HP Rotary Screw Air Compressor, 22 CFM, 230/1/60, 80 Gallon Tank, PK T-7.5A3F0S8U
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Save 35%
$7,312.00
$4,722.00
208/230/1/6040 FLA Voltage208-230/1/60 After CoolerIncluded Airend Warranty2 Year Warranty Standard Warranty1 Year Warranty
Kaishan 5 HP Rotary Screw Air Compressor, 16 CFM, Air Dryer, 80 Gallon Tank, 230/1/60, PK T-005A3F0D8U
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Save 34%
$10,134.00
$6,674.00
208/230/1/6028 FLA Voltage208-230/1/60 After CoolerIncluded Air DryerIncluded Air Dryer StyleRefrigerated
Kaishan KRSB-7.5, 7.5 HP Rotary Screw Air Compressor, 24 CFM, 208-230/460/3/60
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Save 18%
$8,350.00
$6,845.00
208/3/6025.3 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-7.5A2F2S8U, 7.5 HP Rotary Screw Air Compressor, 24 CFM, 125 PSI, 230/3/60
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Save 18%
$8,350.00
$6,845.00
230/3/6022 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-7.5A2F4S8U, 7.5 HP Rotary Screw Air Compressor, 24 CFM, 125 PSI, 460/3/60
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Save 18%
$8,350.00
$6,845.00
460/3/6011 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan 5 HP Rotary Screw Air Compressor, 18 CFM, Air Dryer, 80 Gallon Tank, 3-Phase, PK T-005A3F8D8U
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Save 29%
$9,934.00
$7,032.00
208/3/6017.5 FLA 230/3/6015.2 FLA 460/3/6017.5 FLA Voltage208/230/460/3/60 (Tri Voltage) After CoolerIncluded
Kaishan 7.5 HP Rotary Screw Air Compressor, 24 CFM, Air Dryer, 80 Gallon Tank, 3-Phase, PK T-7.5A3F
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Save 35%
$10,786.00
$7,032.00
208/3/6025.3 FLA 230/3/6022 FLA 460/3/6011 FLA After CoolerIncluded Air DryerIncluded
Kaishan 7.5 HP Rotary Screw Air Compressor, 24 CFM, Air Dryer, 80 Gallon Tank, 3-Phase, PK T-7.5A3F
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Save 47%
$13,182.00
$7,032.00
208/230/1/6040 FLA After CoolerIncluded Air DryerIncluded Air Dryer StyleRefrigerated Sound Level71 dB(A)
Kaishan KRSB-010A2F4S8U, 10 HP Rotary Screw Air Compressor, 37 CFM, 125 PSI, 460/3/60
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Save 17%
$9,640.00
$7,964.00
460/3/6014 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-010A2F2S8U, 10 HP Rotary Screw Air Compressor, 37 CFM, 125 PSI, 230/3/60
Free shipping
Save 17%
$9,640.00
$7,964.00
230/3/6028 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-010A2F8S8U, 10 HP Rotary Screw Air Compressor, 37 CFM, 125 PSI, 208/3/60
Free shipping
Save 17%
$9,640.00
$7,964.00
208/3/6032.2 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-015A2F8S8U 15 HP Rotary Screw Air Compressor, 59 CFM, 125 PSI, 208/3/60
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Save 19%
$10,643.00
$8,571.00
208/3/6048.3 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-015A2F2S8U 15 HP Rotary Screw Air Compressor, 59 CFM, 125 PSI, 230/3/60
Free shipping
Save 19%
$10,643.00
$8,571.00
230/3/6042 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-015A2F4S8U 15 HP Rotary Screw Air Compressor, 59 CFM, 125 PSI, 460/3/60
Free shipping
Save 19%
$10,643.00
$8,571.00
460/3/6021 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-7.5A2F4D8U, 7.5 HP Rotary Screw Air Compressor with Air Dryer & Tank, 24 CFM, 125 PSI, 460/3/60
Free shipping
Save 22%
$12,698.00
$9,874.00
460/3/6011 FLA After CoolerIncluded Air Filtration IncludedIncluded Air DryerIncluded Air Dryer StyleRefrigerated
Kaishan KRST-7.5A2F2D8U, 7.5 HP Rotary Screw Air Compressor with Air Dryer & Tank, 24 CFM, 125 PSI, 230/3/60
Free shipping
Save 22%
$12,698.00
$9,874.00
230/3/6022 FLA After CoolerIncluded Air Filtration IncludedIncluded Air DryerIncluded Air Dryer StyleRefrigerated
Kaishan KRST-7.5A2F2D8U, 7.5 HP Rotary Screw Air Compressor with Air Dryer & Tank, 24 CFM, 125 PSI, 230/3/60
Free shipping
Save 22%
$12,698.00
$9,874.00
208/3/6025.3 FLA After CoolerIncluded Air Filtration IncludedIncluded Air DryerIncluded Air Dryer StyleRefrigerated
Kaishan KRSD-015A2F4S8U, 15 HP Rotary Screw Air Compressor, 63 CFM, 125 PSI, 460/3/60
Free shipping
Save 22%
$12,900.00
$10,122.00
208/3/6048.3 FLA 230/3/6042 FLA 460/3/6021 FLA 575/3/6017 FLA After CoolerIncluded
Kaishan KRSD-015A2F8S8U, 15 HP Rotary Screw Air Compressor, 63 CFM, 125 PSI, 208/3/60
Free shipping
Save 22%
$12,900.00
$10,122.00
208/3/6048.3 FLA 230/3/6042 FLA 460/3/6021 FLA 575/3/6017 FLA After CoolerIncluded
Kaishan KRSD-015A2F2S8U, 15 HP Rotary Screw Air Compressor, 63 CFM, 125 PSI, 230/3/60
Free shipping
Save 22%
$12,900.00
$10,122.00
208/3/6048.3 FLA 230/3/6042 FLA 460/3/6021 FLA 575/3/6017 FLA After CoolerIncluded
Kaishan KRSB-020A2F4S8U, 20 HP Rotary Screw Air Compressor, 80 CFM, 125 PSI, 460/3/60
Free shipping
Save 23%
$13,788.00
$10,578.00
460/3/6027 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-020A2F2S8U, 20 HP Rotary Screw Air Compressor, 80 CFM, 125 PSI, 230/3/60
Free shipping
Save 23%
$13,788.00
$10,578.00
230/3/6054 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-020A2F8S8U, 20 HP Rotary Screw Air Compressor, 80 CFM, 125 PSI, 208/3/60
Free shipping
Save 23%
$13,788.00
$10,578.00
208/3/6062.1 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-010A2F8D8U, 10 HP Rotary Screw Air Compressor with Air Dryer & Tank, 37 CFM, 208/3/60
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Save 23%
$14,128.00
$10,908.00
208/3/6032.2 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-010A2F2D8U, 10 HP Rotary Screw Air Compressor with Air Dryer & Tank, 37 CFM, 230/3/60
Free shipping
Save 23%
$14,128.00
$10,908.00
230/3/6028 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-010A2F4D8U, 10 HP Rotary Screw Air Compressor with Air Dryer & Tank, 37 CFM, 460/3/60
Free shipping
Save 23%
$14,128.00
$10,908.00
460/3/6014 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSD-020A2F8S8U, 20 HP Rotary Screw Air Compressor, 72 CFM, 125 PSI, 208/3/60
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Save 32%
$16,903.00
$11,546.00
208/3/6062.1 FLA 230/3/6054 FLA 460/3/6027 FLA 575/3/6022 FLA After CoolerIncluded
Kaishan KRSD-020A2F2S8U, 20 HP Rotary Screw Air Compressor, 72 CFM, 125 PSI, 230/3/60
Free shipping
Save 32%
$16,903.00
$11,546.00
208/3/6062.1 FLA 230/3/6054 FLA 460/3/6027 FLA 575/3/6022 FLA After CoolerIncluded
Kaishan KRSD-020A2F4S8U, 20 HP Rotary Screw Air Compressor, 72 CFM, 125 PSI, 460/3/60
Free shipping
Save 32%
$16,903.00
$11,546.00
208/3/6062.1 FLA 230/3/6054 FLA 460/3/6027 FLA 575/3/6022 FLA After CoolerIncluded
Kaishan KRST-015A2F8D8U, 15 HP Rotary Screw Air Compressor with Air Dryer & Tank, 59 CFM, 125 PSI, 208/3/60
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Save 25%
$16,662.00
$12,561.00
208/3/6048 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-015A2F4D8U, 15 HP Rotary Screw Air Compressor with Air Dryer & Tank, 59 CFM, 125 PSI, 460/3/60
Free shipping
Save 25%
$16,662.00
$12,561.00
460/3/6021 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-015A2F2D8U, 15 HP Rotary Screw Air Compressor with Air Dryer & Tank, 59 CFM, 125 PSI, 230/3/60
Free shipping
Save 25%
$16,662.00
$12,561.00
230/3/6042 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-025A2F8S8U, 25 HP Rotary Screw Air Compressor, 107 CFM, 125 PSI, 208/3/60
Free shipping
Save 13%
$15,134.00
$13,232.00
208/3/6078.2 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-025A2F2S8U, 25 HP Rotary Screw Air Compressor, 107 CFM, 125 PSI, 230/3/60
Free shipping
Save 13%
$15,134.00
$13,232.00
230/3/6068 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-025A2F4S8U, 25 HP Rotary Screw Air Compressor, 107 CFM, 125 PSI, 460/3/60
Free shipping
Save 13%
$15,134.00
$13,232.00
460/3/6034 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSD-25, 25 HP Rotary Screw Air Compressor, 113 CFM, 125 PSI, 3-Phase
Free shipping
Save 16%
$16,402.00
$13,827.00
208/3/6078.2 FLA 230/3/6068 FLA 460/3/6034 FLA 575/3/6027 FLA After CoolerIncluded
Kaishan KRSD-025A2F2S8U, 25 HP Rotary Screw Air Compressor, 113 CFM, 125 PSI, 230/3/60
Free shipping
Save 16%
$16,402.00
$13,827.00
208/3/6078.2 FLA 230/3/6068 FLA 460/3/6034 FLA 575/3/6027 FLA After CoolerIncluded
Kaishan KRSD-025A2F8S8U, 25 HP Rotary Screw Air Compressor, 113 CFM, 125 PSI, 208/3/60
Free shipping
Save 16%
$16,402.00
$13,827.00
208/3/6078.2 FLA 230/3/6068 FLA 460/3/6034 FLA 575/3/6027 FLA After CoolerIncluded
Kaishan KRSB-030A2F8S8U, 30 HP Rotary Screw Air Compressor, 120 CFM, 125 PSI, 208/3/60
Free shipping
Save 23%
$18,078.00
$13,915.00
208/3/6092 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-030A2F2S8U, 30 HP Rotary Screw Air Compressor, 120 CFM, 125 PSI, 230/3/60
Free shipping
Save 23%
$18,078.00
$13,915.00
230/3/6080 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-030A2F4S8U, 30 HP Rotary Screw Air Compressor, 120 CFM, 125 PSI, 460/3/60
Free shipping
Save 23%
$18,078.00
$13,915.00
460/3/6040 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSD-030A2F8S8U, 30 HP Rotary Screw Air Compressor, 138 CFM, 125 PSI, 230/3/60
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Save 22%
$19,746.00
$15,463.00
208/3/6092 FLA 230/3/6080 FLA 460/3/6040 FLA 575/3/6032 FLA After CoolerIncluded
Kaishan KRSD-030A2F4S8U, 30 HP Rotary Screw Air Compressor, 138 CFM, 125 PSI, 460/3/60
Free shipping
Save 22%
$19,746.00
$15,463.00
208/3/6092 FLA 230/3/6080 FLA 460/3/6040 FLA 575/3/6032 FLA After CoolerIncluded
Kaishan KRST-020A2F8D8U, 20 HP Rotary Screw Air Compressor with Air Dryer & Tank, 80 CFM, 208/3/60
Free shipping
Save 30%
$22,194.00
$15,595.00
208/3/6062.1 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-020A2F2D8U, 20 HP Rotary Screw Air Compressor with Air Dryer & Tank, 80 CFM, 230/3/60
Free shipping
Save 30%
$22,194.00
$15,595.00
230/3/6054 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-020A2F4D8U, 20 HP Rotary Screw Air Compressor with Air Dryer & Tank, 80 CFM, 460/3/60
Free shipping
Save 30%
$22,194.00
$15,595.00
460/3/6027 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSD-015A1V4S8U, 15 HP Rotary Screw Air Compressor, 63 CFM, 125 PSI, Variable Speed Drive
Free shipping
Save 7%
$17,156.00
$15,903.00
460/3/6021 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty10 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSD-015A1V4S8U, 15 HP Rotary Screw Air Compressor, 63 CFM, 125 PSI, Variable Speed Drive
Free shipping
Save 11%
$18,958.00
$16,903.00
460/3/6027 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty10 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-40, 40 HP Rotary Screw Air Compressor, 176 CFM, 230/3/60 | KRSB-040A2F2S8U
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Save 22%
$22,400.00
$17,442.00
230/3/60104 FLA Voltage230/3/60 After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty
Kaishan KRSB-40, 40 HP Rotary Screw Air Compressor, 176 CFM, 460/3/60 | KRSB-040A2F4S8U
Free shipping
Save 22%
$22,400.00
$17,442.00
460/3/6052 FLA Voltage460/3/60 After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty
Kaishan KRSD-025A2V4S8U, 25 HP Rotary Screw Air Compressor, 107 CFM, 125 PSI, Variable Speed Drive
Free shipping
Save 15%
$21,956.00
$18,656.00
460/3/6034 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty10 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSD-040A2F4S8U, 40 HP Rotary Screw Air Compressor, 195 CFM, 125 PSI, 460/3/60
Free shipping
Save 26%
$26,442.00
$19,559.00
208/3/60120 FLA 230/3/60104 FLA 460/3/6052 FLA 575/3/6041 FLA After CoolerIncluded
Kaishan KRSD-040A2F2S8U, 40 HP Rotary Screw Air Compressor, 195 CFM, 125 PSI, 230/3/60
Free shipping
Save 26%
$26,442.00
$19,559.00
208/3/60120 FLA 230/3/60104 FLA 460/3/6052 FLA 575/3/6041 FLA After CoolerIncluded
Kaishan KRSD-040A2F2S8U, 40 HP Rotary Screw Air Compressor, 195 CFM, 125 PSI, 230/3/60
Free shipping
Save 26%
$26,442.00
$19,559.00
208/3/60120 FLA 230/3/60104 FLA 460/3/6052 FLA 575/3/6041 FLA After CoolerIncluded
Kaishan KRSB-50, 50 HP Rotary Screw Air Compressor, 212 CFM, 460/3/60 | KRSB-050A2F4S8U
Free shipping
Save 19%
$24,350.00
$19,676.00
460/3/6052 FLA After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRSB-50, 50 HP Rotary Screw Air Compressor, 212 CFM, 230/3/60 | KRSB-050A2F2S8U
Free shipping
Save 19%
$24,350.00
$19,676.00
230/3/60130 FLA Voltage230/3/60 After CoolerIncluded Low Level Oil SwitchIncluded Airend Warranty5 Year Warranty
Kaishan KRST-025A2F4D8U, 25 HP Rotary Screw Air Compressor with Air Dryer & Tank, 107 CFM, 460/3/60
Free shipping
Save 27%
$27,400.00
$20,060.00
460/3/6034 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-025A2F2D8U, 25 HP Rotary Screw Air Compressor with Air Dryer & Tank, 107 CFM, 230/3/60
Free shipping
Save 27%
$27,400.00
$20,060.00
230/3/6068 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-025A2F4D8U, 25 HP Rotary Screw Air Compressor with Air Dryer & Tank, 107 CFM, 460/3/60
Free shipping
Save 27%
$27,400.00
$20,060.00
460/3/6034 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-030A2F2D8U, 30 HP Rotary Screw Air Compressor with Air Dryer & Tank, 120 CFM, 230/3/60
Free shipping
Save 29%
$30,810.00
$21,860.00
208/3/6092 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
Kaishan KRST-030A2F2D8U, 30 HP Rotary Screw Air Compressor with Air Dryer & Tank, 120 CFM, 230/3/60
Free shipping
Save 29%
$30,810.00
$21,860.00
230/3/6080 FLA After CoolerIncluded Air DryerIncluded Airend Warranty5 Year Warranty Standard Warranty1 Year Warranty
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