Brackett Aero Filters BA2405 Aviation Air Filter Youth Aviation Headset Compact and Portable – Includes

Compact and Portable – Includes a protective case and is small enough to fit in your pocket for easy storage

The center panel holds the kneeboard under clear plastic with a pen/pencil holder and buttonholes on either side — allowing a pilot to fold back one or both panels with the legband

and replaces clamp rings

and they're lighter weight

Brackett Aero Filters BA2405 Aviation Air Filter Youth Aviation Headset Compact and Portable – IncludesThe specially treated polyurethane element in the Brackett filter assures near total protection from any foreign material entering the system. Repels water, fire retardant and has good air flow for proper fuel air ratio. Has no pleats to collect dirt. Low cost maintenance with increased engine life. FAA approved. Replace original air filter unit with a Brackett assembly. Thereafter, throw away element and replace with new one at minimal cost. Cessna