Phat Filters - replacement pre-filter replaces your
used pre-filter to give your Phat filter longer life by
filtering out larger impurities before they have a
chance to enter into the actual filter. Each pre-filter
is stamped with the Phat Filter logo and fits snugly
over your Phat filter. The pre-filter is available in all
Phat Filter sizes and can be easily slid over the filter
and secured with the plastic straps provided. If your
pre-filter is dirty or discolored, it is time to change it.
Contents: 1 pre-filter & 2 plastic straps.