Napoleon Vertical/Horizontal Firestop for 4"/7" Venting (Pack of 6)

Napoleon 4DFS-BULK Vertical Firestop for 4 Inch x 7 Inch Rigid Direct Vent, Pack of 6

• Vertical Firestop
• For use with 4 Inch x 7 Inch Rigid Direct Vent
• Rigid Venting cannot be combined with Wolf Steel Venting

Napoleon 4DFSH-BULK Horizontal Firestop for 4 Inch x 7 Inch Rigid Direct Vent, Pack of 6

• Horizontal Firestop
• For use with 4 Inch x 7 Inch Rigid Direct Vent
• Rigid Venting cannot be combined with Wolf Steel Venting