Oetiker ear type clamps "breathe" and adapt to the expansion and contraction of hose affected by thermodynamics or aging - no need to retighten. These clamps are lightweight and compact and provide a tamper-proof seal without damage to the hose.

Styles include:

ONE EAR
-Made of 304 AISI stainless steel or zinc plated 1008/1010 carbon steel

-Features a mechanical lock at the joint instead of a spot weld -- prevents failure due to corrosion

-Low pressure applications -- up to 440 psi maximum

TWO EAR
-300 AISI stainless steel or zinc plated 1008/1010 carbon steel

-One-piece design made from spirally welded tubing

-Moderate pressure applications -- up to 800 psi maximum*; (with two clamps cross applied)

-Suitable for low pressure hydraulic applications

ONE EAR STEPLESS
-Made of 304 AISI stainless steel

-Patented design guarantees 360° seal preventing leaks on soft or thin walled hose or tubing

-One-ear design allows easy accessibility

-Low pressure applications -- up to 500 psi maximum