Bridge Clamps For HVAC systems and Industrial or Sprial HosesWorm Drive Type Hose ClampsMade from 300 Series Stainless Steel1/2" Wide BandFlex-Tube Bridge Stainless Steel Hose ClampsBridge Hose Clamps for reinforced Spiral Hoses and Ducting - MADE in CHINA These Ducting Hose Clamps-Bridge Style apply a tight seal by providing a step over the raised helix of duct hoses.The folding drawer guarantees versatility and easy application particularly on big diameters.Application: air conditioning, ventilation and suction, tightening of flexible hoses also of big diameters. Left-Hand Bridge Clamps for Counterclockwise Sprial Hoses available.Right-Hand Bridge Clamps for Clockwise Spiral Hoses available.Bridge Clamps Materials: Worm Gear Band,Housing,Screw and Folded& Spot Welded Bridge, ALL Stainless 304Ducting Hose Bridge Clamps Properties:1. Rust Resistant 2. Easy to Install 3.Extra StrengthThese Sprial Hose Clamp Sizes shows belowNAMEDIA(in)Bandwidth(in)Left-Hand Bridge Hose Clamps2" 1/2Left-Hand Bridge Hose Clamps2 1/4" 1/2Left-Hand Bridge Hose Clamps2 1/2" 1/2Left-Hand Bridge Hose Clamps3" 1/2Left-Hand Bridge Hose Clamps4" 1/2Left-Hand Bridge Hose Clamps4 1/2" 1/2Left-Hand Bridge Hose Clamps5" 1/2Left-Hand Bridge Hose Clamps6" 1/2Left-Hand Bridge Hose Clamps8" 1/2Left-Hand Bridge Hose Clamps9" 1/2Left-Hand Bridge Hose Clamps10" 1/2Left-Hand Bridge Hose Clamps12" 1/2Left-Hand Bridge Hose Clamps14" 1/2Left-Hand Bridge Hose Clamps16" 1/2Left-Hand Bridge Hose Clamps18" 1/2Right-Hand Bridge Hose Clamps2" 1/2Right-Hand Bridge Hose Clamps2 1/4" 1/2Right-Hand Bridge Hose Clamps2 1/2" 1/2Right-Hand Bridge Hose Clamps3" 1/2Right-Hand Bridge Hose Clamps3 1/2" 1/2Right-Hand Bridge Hose Clamps4" 1/2Right-Hand Bridge Hose Clamps4 1/2" 1/2Right-Hand Bridge Hose Clamps5" 1/2Right-Hand Bridge Hose Clamps6" 1/2Right-Hand Bridge Hose Clamps7" 1/2Right-Hand Bridge Hose Clamps8" 1/2Right-Hand Bridge Hose Clamps9" 1/2Right-Hand Bridge Hose Clamps10" 1/2Right-Hand Bridge Hose Clamps12" 1/2Right-Hand Bridge Hose Clamps14" 1/2Right-Hand Bridge Hose Clamps16" 1/2Right-Hand Bridge Hose Clamps18" 1/2Right-Hand Bridge Hose Clamps20" 1/2Right-Hand Bridge Hose Clamps24" 1/2