Oetiker 16704687 Ear Clamp 2 Inches Stainless Steel

Product Description

The OETIKER 16704687 is a single-ear stepless clamp designed for permanent, tamper-resistant hose and tubing connections. The ear clamp works by deforming a single raised ear when compressed with the appropriate pincer tool, creating a uniform 360-degree clamping force around the hose or fitting. This design eliminates the gap points found in screw-type clamps, making it well-suited for low-pressure fluid, pneumatic, and coolant connections. With a 2-inch nominal size, a band width of 7 millimeters, and a band thickness of 0.6 millimeters, this clamp is a reliable choice for HVAC, plumbing, and automotive technicians who need a clean, non-reusable seal on hose assemblies.

This ear clamp is used across residential and light commercial applications where a secure, vibration-resistant hose termination is required. Typical installations include coolant hose connections, condensate drain tubing, PEX or flexible hose fittings, and low-pressure pneumatic lines. The stainless steel construction makes it appropriate for environments with moisture exposure or mild chemical contact. HVAC technicians, plumbers, and mechanical contractors commonly specify ear clamps for connections that must remain leak-free over the long term without periodic re-tightening.

Key Features

• Single-ear stepless design provides uniform 360-degree clamping force
• Stainless steel construction resists corrosion in wet or humid environments
• 2-inch nominal size fits standard hose and tubing of matching diameter
• 7 millimeter band width with 0.6 millimeter band thickness for consistent compression
• Non-reusable, tamper-evident closure confirms proper installation at a glance
• Compatible with standard ear clamp pincer tools used across HVAC and plumbing trades

Compatibility

Designed as an OEM-style replacement or new-installation ear clamp for 2-inch nominal hose and flexible tubing connections in HVAC, plumbing, and mechanical systems.

Installation Notes

Installation requires an ear clamp pincer or stepless clamp tool rated for the clamp diameter — standard slip-joint pliers are not recommended as they do not provide uniform ear compression. Depressurize and drain any fluid lines before removing existing clamps or fitting new connections. This clamp is a single-use, non-reusable fastener; once the ear is crimped it cannot be opened and reused. Follow applicable IPC or mechanical code requirements for hose connection types in your jurisdiction.