Spin Weld Driver, 3/8" & 1/2" Raised FPT tool to install a 3/8" Threaded fitting (part # 12475) or 1/2" Threaded fitting (part # 12477) on your tank.
Durable 1/2" Shank prevents warping and allows for continued safe use.
Watch the training video for more information on how to install spin-weld fittings.