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
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 12/12/2013 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.