Backflow Preventer

For use in cold-weather climates.  Prevents freezing cold air from entering into the vent system and protects the water heater components from damage caused by freezing.

Downloads: 
Download TK-BF01 View in 3D PDF


T-Vent by Takagi offers the best in venting products including:

  • Simple Leak-proof gasketed connections (no sealant required)
  • Quick and easy- “Snap-Lock” connections
  • High quality-Category III Stainless Steel
  • Versatility-vertical and horizontal terminations
  • Sliding adjustable pieces and convenience-T-vent kits are available
  • All T-Vent Products are UL Listed
  • All connections have heat resistant rubber gaskets

TK-BF01 4" Freeze Protection Vent Pipe  D 4"; L 5.713"; L1 3.369"; L2 1.97 
TM-BF50 5" Freeze Protection Vent Pipe  D 5"; L 5.7"; L1 3.4"; L2 2.0