Oetiker 16700092-100 Ear Clamp 3-7/8 in Stainless Steel

Product Description

The OETIKER 16700092-100 is a single-ear clamp designed for secure, permanent hose and tubing connections in HVAC, plumbing, and fluid-handling applications. The clamp features a nominal size of 3-7/8 inches, a band width of 7 millimeters, and a band thickness of 0.6 millimeters. Constructed from stainless steel, it resists corrosion in wet, high-humidity, and chemically active environments. Once the ear is crimped using a pincer tool, the clamp creates a uniform, leak-free seal around the hose or fitting. This style of clamp is a standard choice for licensed HVAC techs, plumbers, and mechanical contractors who need a clean, low-profile connection without the bulk of a worm-gear clamp.

Single-ear clamps in this size range are commonly used in residential and light commercial HVAC systems for condensate drain lines, refrigerant line insulation jackets, and flexible hose-to-fitting connections. They are also used in plumbing for PEX tubing connections, hydronic heating systems, and other fluid-handling assemblies where a tamper-resistant, permanent clamp is required. The inner ear width of 10 millimeters is compatible with standard ear-clamp pincer tools used across the trade.

Key Features

• Nominal clamp size of 3-7/8 inches for medium-diameter hose and tubing connections
• Stainless steel construction provides corrosion resistance in wet and chemically active environments
• 7 mm band width and 0.6 mm band thickness for a low-profile, uniform cinch
• 10 mm inner ear width is compatible with standard ear-clamp pincer tools
• Single-ear design creates a permanent, tamper-resistant seal once crimped

Compatibility

Designed as an OEM-style replacement or new-installation ear clamp for hose and tubing assemblies requiring a 3-7/8 inch nominal clamp size across HVAC, plumbing, and mechanical applications.

Installation Notes

Installation requires a dedicated ear-clamp pincer or pince-a-sertir tool rated for the ear width. Shut off fluid flow and depressurize the line before removing any existing clamp or fitting. Once crimped, the ear deforms permanently and the clamp cannot be reused. Follow applicable IPC or mechanical code requirements for the specific pipe or hose material being clamped.