This custom-made adapter replaces the 90deg top on the steel disconnects so that you can attach something straight on a ball lock post.
You need to buy a steel disconnect with it, this price is just for the custom-made straight adapter on top.
It can be used on either liquid or gas steel disconnects.
It allows you to use a mini keg while it is lying down in the fridge (pictured attached to a 5L iKegger mini keg in a standard size 280L fridge, the door closes easily but you can remove the tap with one hand if you need to due to a shallow fridge)
We also have keg stands custom-made to fit out mini kegs which prevent them rolling around in the fridge here