Just a heads up...there is a listing for 2 b7a18502a nos heater valves on ebay. 29.50 ea. these may be the ones that some have had a hard time finding. under ebay motors, vintage parts, heating and air
Rich:
The one I had one hell of a time finding is the "B" type or the capillary tube type.
The EBay advertised "A" is the vacuum operated more common version.
The capillary tube type is easily distinguished by the snail like, coil of copper tubing which forms the capillary portion of the valve. Thanks for the heads up though!
BuBBa