TEC

  • Minneapolis Blower Door™ Ring D Minneapolis Blower Door™ Ring D

    Minneapolis Blower Door™ Ring D

    Blower Door Fan Flow Ring D Ring D is an optional flow ring for Model 3 & 4 Minneapolis Blower Door™ fans. Ring D measures air flows between 115 - 30 CFM. Ring D attaches inside Ring B by...
    $105.00
    Add to Cart
  • Minneapolis Blower Door™ Ring E Minneapolis Blower Door™ Ring E

    Minneapolis Blower Door™ Ring E

    Blower Door Fan Flow Ring E Ring E is an optional flow ring for Model 3 & 4 Minneapolis Blower Door™ fans. Ring E measures air flows between 45 - 11 CFM. Ring E attaches inside Ring D by...
    $55.00
    Add to Cart