Oetiker 16700004-100 Ear Clamp 3/8 Inch Stainless Steel

Product Description

The OETIKER 16700004-100 is a single-ear stepless clamp designed to create a permanent, vibration-resistant seal on hose and tubing connections. With a nominal size of 3/8 inch, a band width of 5 millimeters, and a wall thickness of 0.50 millimeters, this clamp is built for tight-tolerance applications where a reliable mechanical bite is required. Constructed from stainless steel, it resists corrosion in wet, chemical-exposed, or outdoor service environments. Installation requires a pincer-type ear clamp tool that cold-forms the ear, locking the clamp to a fixed diameter without threads or screws. HVAC technicians, plumbers, and refrigeration mechanics routinely specify this type of clamp for condensate drain lines, coolant hoses, and low-pressure fluid connections.

This clamp is suited for residential and light commercial applications wherever a 3/8 inch nominal hose or tubing termination requires a secure, non-adjustable mechanical seal. Typical uses include condensate drain line fittings, PEX-to-barb transitions, low-pressure pneumatic tubing, and small-diameter coolant or fluid hoses. Its compact profile fits in confined spaces where worm-drive or T-bolt clamps are impractical. Sold individually, this clamp is ordered in multiples of 10 to match common service and installation quantities.

Key Features

• Nominal size: 3/8 inch — fits standard small-diameter hose and tubing barb fittings
• Stainless steel construction resists corrosion in wet and chemically active environments
• 5 millimeter band width and 0.50 millimeter wall thickness for consistent, low-profile clamping
• Single-ear stepless design provides a fixed-diameter, permanent crimp once installed
• Compact form factor suits confined-space installations where adjustable clamps will not fit
• Minimum order quantity of 10 units supports typical service call or new-installation needs

Compatibility

Designed as an OEM-style replacement or new-installation clamp for 3/8 inch nominal hose and tubing barb connections in HVAC, plumbing, and fluid-handling systems.

Installation Notes

Installation requires a dedicated pincer-type ear clamp tool — standard pliers will not produce a correct, consistent crimp. Shut off fluid flow and depressurize the line before removing or installing any clamp. Once the ear is crimped, the clamp cannot be re-opened or reused; have replacement clamps on hand before beginning work. Follow applicable IPC, IMC, or manufacturer guidelines for hose and fitting material compatibility before selecting this clamp for a given application.