AAF's universal housing makes installation of any unit filter or pre-filter combination quick and easy. The unique, adjustable locking mechanism provides positive sealing, as well as, quick release for filter service or replacement. The UF-H Housing will hold 8 different filter combinations for pulsating and smooth flow conditions. Accommodating a variety of filters including AmerKleen M-80 and DuraCel® XL Series with pre-filter; upgrades to more efficient filtration are easy.