Oetiker 16705637 Ear Clamp 1-1/4 Inches Stainless Steel

Product Description

The OETIKER 16705637 is a single-ear stepless clamp designed for secure, permanent hose connections in plumbing, HVAC, and fluid-handling applications. The clamp closes uniformly around the hose when crimped with the appropriate pincer tool, eliminating leak paths without over-stressing the hose or fitting. Sized for 1-1/4-inch applications, it features a 7 mm band width and 0.6 mm band thickness in stainless steel construction. Licensed plumbers, HVAC technicians, and mechanical contractors install this type of clamp where a factory-quality, tamper-resistant connection is required.

This ear clamp is suited for residential and light commercial installations where hose-to-barb or hose-to-fitting connections must remain leak-free under sustained pressure or vibration. Typical applications include flexible coolant lines, condensate drain connections, PEX and rubber hose terminations, and other fluid or air conveyance assemblies. The 1-1/4-inch sizing fits standard hose and tubing of that nominal diameter.

Key Features

• Stainless steel construction resists corrosion in wet or humid environments
• Single-ear stepless design provides uniform 360-degree clamping force when crimped
• 7 mm band width distributes load evenly across the hose surface
• 0.6 mm band thickness balances strength with ease of crimping
• Permanent, tamper-resistant connection once installed

Compatibility

Designed as an OEM-style replacement or new-installation ear clamp for 1-1/4-inch nominal hose and tubing connections in plumbing, HVAC, and mechanical systems.

Installation Notes

Installation requires a dedicated ear-clamp pincer or crimping tool rated for this clamp size — do not attempt to close the ear with pliers or improper tooling, as uneven force will compromise the seal. Ensure the hose is fully seated on the fitting barb before crimping. Once the ear is closed, the clamp cannot be reopened or reused; plan accordingly when servicing the line. Follow applicable IPC or IFGC guidelines for the specific fluid or gas service.

Technical Specifications

• Clamp Size: 1-1/4 inches
• Band Width: 7 mm
• Band Thickness: 0.6 mm
• Material: Stainless Steel
• Clamp Type: Single Ear Stepless

Standard Information

• Brand: OETIKER
• Manufacturer Part Number: 16705637