Large-diameter hose (LDH) has the ability to move large volumes of water at a fraction of the friction loss when compared to traditional smaller-diameter hose.  First Out Rescue Equipment offers LDH from Snap-Tite Hose Co. and Kuriyama (formerly Armored Textiles Inc. (ATI) in sizes up to 6” with multiple coupling and color options.   Remember, when moving "big water"…. Size Does Matter!