Twin Air Air Filter - Air Filter Rade Garage Airbox KTM 690 2019/2021 Husqvarna 701 2019/2021

A replacement Twin Air dual-stage foam air filter made specifically for the Rade Garage airbox fitted to KTM 690 and Husqvarna 701 large-capacity singles. It is shaped for that aftermarket airbox rather than the standard OEM housing, so it seals and breathes the way the airbox was designed to.

Twin Air builds its filters from open-pore foam in two fused layers: a coarse outer layer that grabs airborne dirt, grime and sand, and a finer inner layer that catches the small stuff before it reaches the throttle body. Fusing the layers stops dirt collecting between them, which is a known weakness of two-piece filters, and the thick flat foam sealing ring seats against the airbox without needing grease.

Suited to desert, dusty trail and adventure riding where filtration matters as much as airflow. Foam construction means it can be washed, re-oiled and used again, so keeping a spare on hand makes servicing between rides straightforward.