Amazon.com: JGB Enterprises A015-0640-3520 Kanaflex Kanaline SR Hose, 4" x 20', Type C and E Cam Locks, with Full Slinky with Type E Cam Locks and 3/4" Clamps, 75 psi Working Pressure :
Kanaflex 8" Steel Power Lock 200 Clamp for Corrugated Hose-Duct | eBay