Oetiker 16700010 Stepless Ear Clamp, One Ear, 7 mm Band Width, Clamp ID Range 10.8 mm (Closed) - 13.3 mm (Open) (Pack of 25)

great

i clamped the hell out of some fuel line and it hasnt leaked. enough said.

Five star

GREAT PRODUCT & PRICE

These are ideal and well-priced. Very useful, need a special wrench just FYI

Using these with my home brew setup, easy to install, secure, great product.

These are great clamps.

I use this specifically for my late 80s BMW fuel system lines. They are period correct, have no carbon steel to rust, and clamp extremely tightly if you use the right tool. They can be a pain to remove and are one time use (unless you somehow can take it off without damaging) but hopefully that doesnt happen too often. I keep stock on hand at all times just in case I need to replace leaking or burst lines.

Great clamps. Must have special tool to install.

Very good quality.