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Humidifier Parts & Supplies

Find all of your humidifier needs here with these wide variety of parts and supplies. We carry a large selection of water panels, filters, bottle caps, humidistats, relays, valves, and much more from the most popular brands.

  • FREE Shipping on Orders Over $125 (Continental U.S.)
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  • Aprilaire 4232 Orifice - Blue

    Aprilaire 4232 Orifice - Blue

    $11.07
    Free Shipping On All Orders Over $125! in Continental U.S.
  • Aprilaire 4223 Drain Spud

    Aprilaire 4223 Drain Spud

    $14.96
    Free Shipping On All Orders Over $125! in Continental U.S.
  • Aprilaire 4630 HEATER 1180 Aprilaire 4630 HEATER 1180
    $129.21 Includes FREE Shipping in Continental U.S.
  • GeneralAire Humidifier – 81-21 Float Assembly GeneralAire Humidifier – 81-21 Float Assembly
    $28.93
    Free Shipping On All Orders Over $125! in Continental U.S.
  • Aprilaire 4640 SCALE CONTRL INSERT Aprilaire 4640 SCALE CONTRL INSERT
    $26.04
    Free Shipping On All Orders Over $125! in Continental U.S.
  • Aprilaire #50 Current Sensing Relay Aprilaire #50 Current Sensing Relay
    $34.45
    Free Shipping On All Orders Over $125! in Continental U.S.
    2 Review(s)

    Out of stock

  • Aprilaire 4040 Humidifier Solenoid Valve Aprilaire 4040 Humidifier Solenoid Valve
    $75.86
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Essick Air 32 oz. Bacteria Treatment | 1970 | Required for Evaporative Humidifiers Essick Air 32 oz. Bacteria Treatment | 1970 | Required for Evaporative Humidifiers
    $9.72
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4010 24VAC Transformer Aprilaire 4010 24VAC Transformer
    $253.37 Includes FREE Shipping in Continental U.S.

    Out of stock

  • Essick Air 509229-1 - Valve Cap Essick Air 509229-1 - Valve Cap
    $10.30
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4981 Internal Control Circuit Board Aprilaire 4981 Internal Control Circuit Board
    $182.74 Includes FREE Shipping in Continental U.S.

    Out of stock

  • Aprilaire 4004 In-Line Strainer Aprilaire 4004 In-Line Strainer
    $17.38
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4704 5000 SEAL KIT Aprilaire 4704 5000 SEAL KIT
    $28.75
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4236 Scale Control Insert Aprilaire 4236 Scale Control Insert
    $17.71
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Essick Air 1990 Digital Hygrometer / Thermometer Essick Air 1990 Digital Hygrometer / Thermometer
    $24.62
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 8052 10K DUCT SENSOR RPC#692 Aprilaire 8052 10K DUCT SENSOR RPC#692
    $22.84
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4725 SEALS FOR 2200 APRILAIRE Aprilaire 4725 SEALS FOR 2200 APRILAIRE
    $41.96
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire51 Current Sensing Relay Aprilaire51 Current Sensing Relay
    $53.52
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 5152 BLOWER ASSEMBLY Aprilaire 5152 BLOWER ASSEMBLY
    $457.63 Includes FREE Shipping in Continental U.S.

    Out of stock

  • Aprilaire 4231 Orifice - Yellow Aprilaire 4231 Orifice - Yellow
    $10.59
    Free Shipping On All Orders Over $125! in Continental U.S.
    1 Review(s)

    Out of stock

  • Aprilaire 5151 ENERGY MAX TRANS CORE Aprilaire 5151 ENERGY MAX TRANS CORE
    $381.71 Includes FREE Shipping in Continental U.S.

    Out of stock

  • Aprilaire 4246 Water Distr Tray 760 Aprilaire 4246 Water Distr Tray 760
    $22.37
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4740 RELAY 700A & 700M Aprilaire 4740 RELAY 700A & 700M
    $29.77
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4982 - Current Sensing Circuit Board Aprilaire 4982 - Current Sensing Circuit Board
    $140.38 Includes FREE Shipping in Continental U.S.

    Out of stock

  • Aprilaire 4028 - Dehumidifier Drain Pan Aprilaire 4028 - Dehumidifier Drain Pan
    $74.91
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4332 DAMPER ASSEM MODEL 600 Aprilaire 4332 DAMPER ASSEM MODEL 600
    $30.54
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4208 Door Retainer Aprilaire 4208 Door Retainer
    $34.51
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

  • Aprilaire 4330 SCALE CONTROL INSERT Aprilaire 4330 SCALE CONTROL INSERT
    $26.04
    Free Shipping On All Orders Over $125! in Continental U.S.

    Out of stock

Items 1 to 32 of 214 total

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