MP11-0007 - This little catch tank is perfect to catch the overflow on wet cell batteries as well as for your vent tube off your gas tank [if you have one]. It is only 25mm round x 104mm long and comes with a section of hose and 2 zip ties. One edge is flattened out actually concave a bit so it will stay put when you zip tie it to your frame. Just insert one end of your battery overflow into one of the nipples, and run the other hose somewhere and you will not get any battery acid on your frame, swingarm or bodywork. Cheap insurance for sure!