Everbilt 3/8 - 7/8 in. Stainless Steel Hose Clamp 08069001015 - The Home Depot
HOSE CLAMP 3/8" - 10/BX
Adjustable hose clamp 3/8 - 7/8" - APEX
Amazon.com: STEELSOFT Heavy Duty High Pressure 3/8 inch Hose Clamp Size#4, 3 /8-5/8"Adjustable Worm Gear Drive Small Mini Hose Clamps Stainless Steel Tube Clamp for Fuel Injection Gas Line/Automotive, 12 Pack : Automotive
Worm Drive Clamps for 3/8 or 1/2 Inch ID Tubing - Kegco