Conductix-Wampfler Grounding Reels (also called Static Discharge Reels) ground potentially dangerous static electricity in hazardous areas, such as refueling stations, fuel trucks, fuel tanks, aircraft, and so forth. They are available in several models and cable lengths:

The red painted "SDR" model is a compact, all-steel unit with 100 amp grounding clamp included. It is available in 25 ft. and 50 ft. lengths. Cable is vinyl-coated aircraft cable.

The yellow "1400 Series Grounding Reel" handles up to 100 ft. 12/01 SOW-A cable or orange jacketed aircraft cable. This reel is built to NEMA 4X standards, and comes with ball stop, 4-roller cable guide, ratchet lock-out, and 100 amp grounding clamp.