The ADAPTIDRY is specifically designed to work with several pieces of drying equipment. The MAX Force and Phoenix Guardian HEPA filter make a perfect companion to the ADAPTIDRY. This ADAPTOR fits in well with today’s trend toward less destructive and non-invasive drying. Increasingly Certified Industrial Hygienist are asking for more control and faster drying. The ADP5 & ADP9 fit 12” 14” 16” & 18” rings: Axial fans MAX Force Air Wolf Phoenix Guardian HEPA Abatement Technologies 1800 & 2400 Air Scrubbers and others.