• AprilAire 70000037 Humidifier Check Valve Orifice Assembly Hero Photo
  • AprilAire 70000037 Humidifier Check Valve Orifice Assembly Hero Photo
  • AprilAire 70000037 Humidifier Check Valve Orifice Assembly Close Up Photo
  • AprilAire 70000037 Humidifier Check Valve Orifice Assembly Top View Photo
  • AprilAire 70000037 Humidifier Check Valve Orifice Assembly Bottom View Photo
  • AprilAire 70000037 Humidifier Check Valve Orifice Assembly Interior Photo
1 6

AprilAire 70000037 Replacement Orifice and Seal Cap

AprilAire 70000037 Replacement Orifice and Seal Cap

For Whole-House Humidifier Models 620 and 720

This product is available from our nationwide network of AprilAire Healthy Air Professionals

Find a Pro
View full details
  • COMPATIBLE WITH - AprilAire 620 and 720 HydroCore™ Series Humidifiers
  • OPTIMAL PERFORMANCE – Accurately meters the flow of water into the humidifier
  • PERFECT APRILAIRE FIT – Maintain peak performance of your humidifier with genuine replacement parts and quality you can trust
  • PEAK PERFORMANCE – Annual replacement recommended for hard water and every three years for softened water installs. Inspect and replace the orifice regularly to maintain peak performance and protect against clogs due to buildup.
  • HUMIDITY FOR HEALTH – AprilAire Humidifiers can help you maintain optimal humidity in your home which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions.

Balance your home's humidity

AprilAire Whole-House Humidifiers balance your home's humidity to help improve sleep and dry skin, enhance productivity, and keep you protected against airborne viruses. Additionally, AprilAire Humidifiers help preserve your home and any contents susceptible to cracking and
warping due to low humidity levels.

  • Maintain Wellness

    Reduce airborne illnesses that can cause respiratory infections, asthma
    attacks, and allergic reactions by maintaining proper relative
    humidity in your home.*

    *E.M.Sterling, “Criteria for Human Exposure to Humidity in Occupied
    Building,” ASHRAE Winter Meeting, 1985

  • Lower Energy Costs

    Humidifiers can affect the “real feel” temperature in your home, which can
    prevent your furnace from working overtime.

  • Home Preservation

    Air that’s too dry can cause wood to splinter. Protect the structural integrity of your home and wooden furnishings like floors and cabinets with solutions intuitively designed to create healthy
    environments.

  • Humidity for Comfort

    Whether your home is in a dry region of the country, or in an area with seasonal dryness, maintaining proper humidity levels can make all the difference in how comfortable you feel in your home.

  • Humidity Control at the Ready

    You will also avoid common problems associated with less moisture in the
    air such as dry throat and static shock.

  • AprilAire Genuine Water Panels

    Designed to keep your AprilAire humidifier operating at peak performance, AprilAire Water Panels should be changed per the recommended schedule for your Model, typically once or twice per heating season.