Does the RL550B & SDB use the same powdr measure?
T trapguy New member Dec 27, 2002 #2 yes, but they attach with a different collar, smaller 1 screw attachment on the sdb and 2 screw attchment on the 550
yes, but they attach with a different collar, smaller 1 screw attachment on the sdb and 2 screw attchment on the 550
