Oetiker 16700077-100 Ear Clamp 3 Inches Stainless Steel

Product Description

The OETIKER 16700077-100 is a single-ear clamp designed for secure, permanent hose and tubing connections in plumbing, HVAC, and fluid-handling applications. The clamp features a 3-inch nominal size, a 7 mm band width, and a 0.6 mm band thickness. Once crimped with the appropriate pincer tool, the ear deforms to create a low-profile, vibration-resistant connection that does not loosen over time. Constructed from stainless steel, it resists corrosion in wet and chemically active environments. Plumbers, HVAC technicians, and mechanical contractors use this clamp type where a permanent, tamper-evident seal is required and hose removal is not anticipated.

This ear clamp is suited for residential and light commercial installations where 3-inch diameter hose or tubing must be clamped onto a barbed or smooth fitting. Common applications include PEX tubing connections, condensate drain lines, radiator hoses, and similar fluid or air conveyance assemblies. The stainless steel construction makes it appropriate for use in damp locations, crawlspaces, and mechanical rooms. It is sold individually but carries a minimum order quantity of 5 units.

Key Features

• 3-inch nominal clamp size for standard hose and tubing connections
• Stainless steel construction for corrosion resistance in wet environments
• 7 mm band width provides consistent clamping force across the ear
• 0.6 mm band thickness balances flexibility during crimping with holding strength after installation
• 10 mm inner ear width accommodates standard crimping pincer tooling
• Single-ear design creates a permanent, low-profile connection

Compatibility

Designed as an OEM-style single-ear clamp for 3-inch nominal diameter hose and tubing assemblies in plumbing, HVAC, and mechanical systems requiring a permanent crimped connection.

Installation Notes

Installation requires a dedicated ear-clamp pincer or crimping tool rated for single-ear clamps of this band width. Shut off fluid or air flow and depressurize the system before servicing any hose connection. Ensure the hose is fully seated on the fitting barb before positioning the clamp ear over the recommended crimp zone. Once crimped, the connection is permanent and the clamp cannot be reused.