Twin Air’s breakthrough, fused-dual-layer design (now widely copied) combined performance and protection. The fused layers of open-pore foam and fine inner foam trap even the smallest particles. The new, rounder design boosts airflow. So do the minimized seams made possible by a revolutionary micro-gluing process: Shorter seams = more foam = more flow.

Features:

• WASHABLE / REUSABLE: reusing a Twin Air filter 40-50 times is common
• DUAL-LAYER FOAM: made to our specifications, with cells that are evenly sized and distributed
• GREASELESS SEALING RING
• HIGH QUALITY: assembled by hand and inspected for a perfect fit