Oetiker 16700087-100 Ear Clamp 3-5/8 in Stainless

Product Description

The OETIKER 16700087-100 is a single-ear hose clamp engineered for secure, permanent hose connections in HVAC, plumbing, and fluid-handling applications. The clamp closes by crimping the ear with a pair of ear clamp pliers or a pincer tool, creating a 360-degree uniform radial force around the hose. It is constructed from stainless steel for corrosion resistance in wet or chemically active environments. The nominal size is 3-5/8 inches, the band is 7 millimeters wide and 0.6 millimeters thick, and the inner ear width is 10 millimeters. HVAC technicians, plumbers, and refrigeration mechanics install this clamp where a non-removable, vibration-resistant connection is required.

This ear clamp suits residential and light commercial applications where a permanent hose termination is preferred over a reusable screw clamp. Common install scenarios include flexible drain line connections, condensate hose terminations, low-pressure coolant hoses, and radiant heating tubing. The stainless steel construction makes it appropriate for indoor or outdoor installations exposed to moisture. Sold individually, though a minimum order quantity of 5 units applies when purchasing this part number.

Key Features

• Single-ear design creates a permanent, vibration-resistant hose connection when crimped
• Stainless steel construction resists corrosion in wet and chemically active environments
• 7 millimeter band width and 0.6 millimeter thickness for consistent clamping force
• 10 millimeter inner ear width accommodates standard ear clamp pincer tooling
• 3-5/8 inch nominal size fits a range of medium-diameter flexible hoses

Compatibility

Designed as an OEM-style replacement or service clamp for medium-diameter flexible hoses in residential and commercial HVAC, plumbing, and fluid-handling systems.

Installation Notes

Installation requires a dedicated ear clamp pincer tool or ratcheting clamp pliers — standard screwdrivers and slip-joint pliers are not suitable for this clamp style. Shut off fluid flow and depressurize the line before removing any existing hose clamp. Once crimped, the ear clamp is not reusable; if the hose must be removed later, the clamp must be cut and replaced. Follow applicable IPC or mechanical code requirements for the fluid type and pressure rating of the assembly.