Oetiker 10500354-100 1-ear Clamp 2-1/4 Inch

Product Description

The OETIKER 10500354-100 is a 1-ear clamp designed for secure, permanent hose and tubing connections in plumbing, HVAC, and fluid-transfer applications. Manufactured from carbon steel with a zinc-plated head coating, it provides corrosion resistance in demanding service environments. The clamp features a 7 mm band width and 0.75 mm band thickness, delivering consistent clamping force across its rated range. Installation is completed with a standard ear-closing tool, making it a reliable choice for licensed plumbers, HVAC technicians, and mechanical contractors who require a tamper-evident, single-use closure.

This 1-ear clamp is suited for residential and light commercial applications where a permanent, low-profile clamp is required. Typical uses include securing PEX tubing, coolant hoses, condensate lines, and similar flexible tubing assemblies. The 2-1/4 inch nominal size accommodates tubing with an outside diameter in the clamping range of 54.40 mm to 57.50 mm. It is sold individually with a minimum order quantity of 10 units, making it appropriate for service fleets and supply stocking.

Key Features

• 1-ear design provides a tamper-evident, permanent closure once installed
• Carbon steel construction with zinc-plated head coating for corrosion resistance
• 7 mm band width and 0.75 mm band thickness for consistent clamping force
• Clamping range of 54.40 mm to 57.50 mm suits 2-1/4 inch nominal tubing
• 0.394 inch (10 mm) inner ear width compatible with standard ear-closing pliers
• Low-profile band design fits tight installation spaces

Compatibility

Designed as an OEM-style replacement or new-installation clamp for 2-1/4 inch nominal flexible hose and tubing connections in plumbing, HVAC, and fluid-transfer assemblies.

Installation Notes

Installation requires a dedicated ear-closing tool or pincer-style clamp tool rated for 1-ear clamps. Shut off fluid supply and depressurize the line before servicing any hose connection. Ensure the tubing is fully seated on the fitting barb before closing the ear. Once the ear is crimped, the clamp is permanent and cannot be reopened or reused.