Specifically designed for use with Norseman Add-on Furnaces, model 1500 or 2500.
- Prevents back draft from returning to the furnace plenum
- Highly recommended for proper furnace installation
- Spring activated for proper functioning
- Complete assembly installs into 8" heat duct
- Exterior foam gasket forms a tight seal within heat duct
Ship Dim: 8.5 x 8.5 x 3.75
Shipping Weight: 8.0 lbs
Please Note: Prices, promotions, styles and availability may vary by store and online. While we do our best to provide accurate item availability information, we cannot guarantee in-stock status and availability as item quantities are constantly changing throughout the day. Inventory last updated 5/21/2013 at 5:00am CT. Rebates are an in-store service; therefore online purchases do not qualify towards rebate redemption.