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4" Backflow Damper

Model Number: TK-BF01  |  Menards® SKU: 6651003

Online Price

This 4" backflow prevention pipe is used in colder climates or where colder air may affect the performance of the tankless unit. It also serves as part of a protection regimen against the unit's heat exchanger freezing which voids the warranty.

  • High quality-category III stainless steel
  • Versatility-use with vertical and horizontal terminations
  • Use with Hydro Smart 170 models HS170NG & HS170LP
  • UL listed
  • Model # TK-BFO1

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Online Availability

Available for immediate shipment.

Store Availability

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 4/18/2014 at 5:00am CT. Online orders and products purchased in-store qualify for rebate redemption. Rebates are provided in the form of a merchandise credit check which can only be used in a Menards store.
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