Worm Clamps - Adjustable Hose Clamps Stainless Steel worm clamps easy to attach and remove.  Use standard flat head screwdriver to adjust size of clamp.
Sizes:
1/8" to 9/16"  - Works best with 1/4" or 3/16"Beer line AND 5/16" gas line.
1/4" to 7/8"