Universal Drycharger Round Tapered Black Filter Wrap (KNNRC-5173DK)Add an extra layer of protection with the Universal Drycharger Round Tapered Black Filter Wrap from K&N. This pre filter wraps around your K&N air filter to guard against dust, sand, and debris in harsh conditions extending the life of your filter and keeping your engine breathing clean in the toughest environments. Features Silicone connectors for a secure, durable seal Manufacturer Description The K&N Drycharger is a silicone treated, polyester wrap