50mm hose size to the body.
Decent usable condition, started cleaning one up the other is still dirty.
Both have intact linkage arms and the valve boxes operate smoothly.
Small amount of rust and a couple dents but they will clean up and work well, they're original german ones so they'll still heat far better than the repops you can get now.
Got my gas heater working so the FVee motor is getting j-tubes.
$50 for the pair.
Steve