At the moment we are busy with the standard delivery of a UV connection on our filter systems. This is a 32mm grommet on the front of the filter that can easily be fitted with an MPF ​​Drum-UV. With a rubber coupling from 32-25mm you can easily install it. NB! No rubbers (or caps) are supplied as standard! You have to order this yourself. click here for our Rubber couplings.