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 5/20/2013 at 5:00am CT. Rebates are an in-store service; therefore online purchases do not qualify towards rebate redemption.