Clamps?

On http://www.homedepot search for
Ez-Flo
#20 Stainless Steel Hose Clamp (Pkg Of 10). Would those make good clamps for 1/2 barbs with Clearflex tubing (has an extra 1/8 wall) Would those work well enough?

Almost the same clamps I use. The #20 is too big though. Those would be almost 3in before you compressed them. I just checked mine, they are #6. The #6 is rated to go up to 3/4in, so I think they should be fine. I use 5/8 OD tygon and have no problem.

I use these from McMaster 300 series stainless

54155K32

Worm-Drive Hose & Tube Clamp With 305SS Screw 1/2" To 29/32" Clamp ID Range, 1/2" Band Width