These gray foam filters are designed for use with all IntelliPAP & IntelliPAP 2 Series CPAP/BiPAP machines. They are reusable and should be cleaned on a regular basis and replaced when worn or damaged.
Dimensions: Approximately 1.75 inches long by 1.25 inches wide with rounded corners.
Works just as well as the more expensive ones I get from local health care equipment supply stores. Less expensive here retail than even paying with my insurance! No brainer. Written by Annette, 2015-02-18