Injen Black Water Repellant Pre-Filter fits X-1021 6in Base/6-7/8in Tall / 5-1/2in Top

Injen Technology's Hydroshield are designed to enhance the efficiency of any air filter, including Injen's SuperNano-Web and our 8-Layer oiled cotton gauze air filters. Injen's Hydroshield is constructed from a proprietary base media and then treated with a hydrophobic water-repellent. Our Hydroshield is UV resistant, can stop contaminants down to.005", is puncture resistant, and has elasticity characteristics which helps the Hydroshield to return to the original shape/position after servicing. , Injen's Hydroshields are engineered to divert damaging contaminants, which can clog your air filter and compromise peak air-flow and horsepower output. Injen's Hydroshield also extends the time between servicing intervals, reducing costs and improving the overall user experience.

This part also goes by the following cross reference.

Cross Reference Part Number: