Oatey® Cherne® Clog-Buster™ Drain Flusher 4 - 6 in. MSCherne Clog Buster Drain Flusher unclogs drain pipes in seconds. Simply remove aerator from spigot of faucet and attach faucet adapter Attaches to standard 3 4 in. garden hose fitting Insert clog buster as far as possible into drain and slowly turn on the cold water clog should dislodge almost immediately Eliminates need for using chemicals