Oetiker 16700084-100 Ear Clamp 3-7/16 in Stainless

Product Description

The OETIKER 16700084-100 is a single-ear clamp designed to create a permanent, vibration-resistant seal on hose and tubing connections. The clamp closes via a pincer tool that deforms the ear, locking the clamp at a fixed diameter without a fastener. It carries a nominal size of 3-7/16 inches, a band width of 7 millimeters, and a wall thickness of 0.6 millimeters. Constructed from stainless steel, it resists corrosion in wet and chemically active environments. HVAC technicians, plumbers, and fluid-system assemblers use this style of clamp where a tamper-evident, low-profile connection is required.

Single-ear clamps in this size range are used across residential and light commercial applications including condensate drain lines, coolant hoses, PEX tubing connections, pool and spa plumbing, and automotive or equipment fluid lines. The 3-7/16 inch nominal size suits medium-diameter tubing where a worm-drive or T-bolt clamp would be too bulky or unreliable. The stainless steel construction makes it suitable for both indoor mechanical rooms and outdoor or buried installations where moisture is present.

Key Features

• Single-ear design creates a permanent, tamper-evident connection when closed with a pincer tool
• Nominal size: 3-7/16 inches for medium-diameter hose and tubing
• Band width: 7 millimeters for consistent clamping force distribution
• Band thickness: 0.6 millimeters balancing flexibility and structural integrity
• Inner ear width: 10 millimeters for standard pincer tool engagement
• Stainless steel construction resists corrosion in wet, chemical, and outdoor environments

Compatibility

Designed as an OEM-style single-ear clamp for hose and tubing connections requiring a 3-7/16 inch nominal diameter in HVAC, plumbing, pool, and fluid-handling applications.

Installation Notes

Installation requires a dedicated ear-clamp pincer tool sized for the ear width. Slide the clamp onto the hose before inserting the fitting, then position the ear over the center of the connection zone and close with the pincer tool in one smooth action. Once closed, the clamp is permanent and cannot be reopened without cutting. Depressurize and drain any line before servicing connections.