Originally Posted by Flash

E-Rockets have the tubes, BT19 which are .70" in dia. or you could say the right scale for 1/100 scale Saturn 1B. My Saturn 1 SA5 and SA7 tubes are cut to 201mm and you need 8 at that length. I'll check and post the length later.

The bt50 should be 235mm long.
The BT19 tubes need to be 194mm long, so shorter than the Saturn 1s

Got mine on order