Included with the NFB-C

3" Vent termination caps (x2)

3" in wall flanges (x4)

Air vent

Wall mounting bracket

Tapping screws & anchors (4)

50 PSI Pressure relief valve heating 

NG/LP Conversion kit

Outdoor temperature sensor & cable

PRV-Air vent adapter (including a clip)

Condensate trap

System temperature sensor

Air vent bushing (1-1/4" to 3/4")

Caps with gaskets

Double nipple (3/4" to 3/4")