One is one pair.
Flange Adaptors for other brand heater box with flange:
- All Bugs with 1200c.c. Fresh Air ~ 1600c.c.
- Split Bus with late Type 1 engines,
- Karmann Ghia with 1200c.c. Fresh Air ~ 1600c.c.
Extra two flanges for welding to heater boxes included
Please choose 35mm, 38mm, or 42mm.