This is the ASR (anti spin reducer) designed to fit the Silver camera on all new winch cameras.

Tests have seen a significant reduction in the spinning motion of the winch camera as it is being lowered and raised, the ASR has 3 fins to create resistance in the water, with one fin containing a small amount of lead.

The ASR is not suitable for winch cameras fitted on the Waverunner MK2/3/4 due to the narrow hopper.