Witter Towballs are designed to be attached to interchangeable on your flange style towbar to allow you to tow you trailer or caravan.

Are tow bars interchangeable?

If you are wondering whether towbars are transferable, the short answer is no. As an experienced manufacturer, we would never recommend transferring a towbar onto another car. Some people think it is fine to transfer a towbar from one vehicle to another.

Are Witter towbars Alko compatible?

However, if you're towing a caravan with ALKO stabilisers, there is a specific ALKO compatible towball, the Witter Z13. This has a slightly longer shaft underneath the ball so an ALKO hitch can be attached properly. The great thing about the Z11 and Z13 is that they are interchangeable.