You will need some fittings and short length of central vacuum pipe to set the filters in a way that works best for where the vacuum sits. The top exhaust port can have the filter fitted on using a single 90 spigot turn (included with the filter). The lower filter will need a connection that comes straight out and then turns up or immediately turns at an angle using the 90 sweep which will connect to a pipe and then a 45 spigot to the filter, or to regular 45 and another pipe which the filter will go on. It depends on the space you have to work with. Here are the parts you can choose from http://builtinvacuum.com/install_shop/pipe-fittings.html
. Use PVC glue but do not glue it to the vacuum tank.