K Series Replacement Pump: Model R321
(1-2HP, 2 Stage, 2 Cylinder)

Compressor Pumps

• Air Compressor Pumps

  • U-Series

    • UB02 (aka EC-0, 0.5HP)

    • UB10 (aka EC-1, 1HP)

    • UB20 (aka EC-2, 2HP)

    • UH30 (aka EC-3, 3HP)

    • UH30D (2-5HP)

    • UHT55 (5HP, Finned Copper Intercooler)

    • UT50 (5HP, Cast Iron Intercooler)

    • UT50U (5HP, Cast Iron Intercooler, Head Unloaders)

    • UT100 (10HP, Cast Iron Intercooler)

    • UT100U (10HP, Cast Iron Intercooler, Head Unloaders)

  • E-Series

    • EC-7 (7HP)

    • EC-15 (15HP)

    • SZ-MSL10 (1-5HP)

    • Other E-Pumps

  • LCO Series

    • LCOA

    • LCOB

    • LCOC

  • K-Series

    • R321

    • R332HU

    • R335HU

    • R352HU

    • R452HU

    • R462HU

  • Gray Line Series

    • GL-335-HU

    • GL-452-HU

    • GL-462HU

    • GL-5

    • GL-10

  • Powerex Oilless

    • 1HP / 1.5HP

    • 2HP / 3HP

    • 5HP

    • 7.5HP / 10HP

    • 15HP

  • Fusheng & Curtis Replacements

    • RF10S (replaces VA-65 or ES-10)

    • RF20S (replaces TA-65 or ES-20)

    • RF23T (replaces HTA-65 or E-23)

    • RF30T (replaces VA-80 or ES-30)

    • RF50S (replaces TA-80 or ES-50)

    • RF50T (replaces HTA-80 or E-50)

    • RF71S (replaces HTA-100 or E-71)

    • RF15T (replaces HTA-120 or E-15)

• Pump Accessories

  • Oil Filter & Oil Sight Glass

    • Oil Filter

      • Assemblies

        • 3/4" NPT

        • 1.25" NPT

      • Elements

        • ESOF-10S, 25 GPM

        • ESOF-10L, 70 GPM

    • Oil Sight Glass

      • Threaded

        • 3/4" NPT

        • 1" NPT

      • Press-In

        • 7/8"

        • 1 1/4"

      • for Rotary Screws

  • Air Inlet Filters

  • Replacement Parts & Tools

  • Mounting Spacers

• Lubricants & Accessories