^^ This is correct. The filter charger (mesh sock) is to prevent moisture from being sucked through the filter into the intake as well as provide protection for bigger dirt particles. Now this won't allow you to drive through floods by any means. If you see a large puddle SLOW DOWN. Better safe than sorry. Also, K&N didn't include a small hose clamp with mine so I had to go to home depot and buy one for $1.40. The filter is also connected onto the intake tube with a clamp if I remember correctly. On a rare occasion the filter can detach from the intake tube if you hit a bump hard or something so just be aware of that. No big deal really though because it hardly ever happens.