The Qtube Replacement Kit contains the replacement foam, O ring and plastic wrap for the Qtube In-Line Muffler. We recommend that these parts be replaced after 14 days of continuous use.
Note: The Q-Lite has replaced the original Qtube. It serves the same function but is 60% lighter. If you own a Q-Lite, you cannot replace the interior foam, so you do not need this replacement kit.