AIR FILTER RTECH BETA 250RR 350RR 390RR 400RR 430RR 450RR 480RR 498RR 500RR X-TRAINER 250 300The Rtech Air Filter's design, high quality materials and superior construction deliver unbeatable performance and protection Rtech filters are designed to increase airflow while ensuring the highest level of protection from dirt dust. Coarse open pore foam catches airborne dirt, grime and sand. Fine open pore inner foam acts as a second filter to trap the smallest particles while ensuring maximum air passage. Exclusively formulated adhesive ensures