Here's the description of the sender I purchased:
CGF-6-12V-240/33-FARIA-2 TERM GAS-5 HOLE 1/2" TUBE
For an extra $15, you can have electronic damping built into the circuitry. I was going to pay the $15... but they talked me out of it. They said their senders are made for marine and RV fuel tanks that have large amounts of fuel slosh. They didn't think I'd have any problems with my B&B tank. I hope they're right
Mike