Description
The Micro Matic 170SL is a professional-grade Oetiker® stepless ear clamp designed to provide a permanent, 360-degree leak-proof seal for your draft beverage and gas lines. Specifically sized for 5/16″ I.D. vinyl (PVC) tubing, this 17.0mm clamp is the gold standard for draft system integrity. Unlike traditional worm-gear clamps that can cause “flat spots” or uneven pressure, the stepless design ensures uniform compression around the entire circumference of the hose. This is essential for preventing slow CO2 leaks and ensuring a sanitary, high-pressure connection that won’t loosen over time due to temperature fluctuations in your kegerator or walk-in cooler.
- Model Number: 170SL (Oetiker Size 17.0)
- Compatibility: Optimized for 5/16″ I.D. Vinyl (PVC) tubing and standard 3/8″ barbs
- Material: 304 Stainless Steel for maximum corrosion resistance and longevity
- Design: “Stepless” tongue-in-groove design eliminates gaps for a perfect 360-degree seal
- Tamper Resistance: Creates a permanent connection that requires a pincer tool to install or remove
- Precision: Smooth inner band prevents damage or cutting into soft vinyl tubing
- Internal Diameter Range: 14.5mm – 17.0mm (Closed to Open)
- Application: Industry-standard for gas lines, beverage lines, and jumper line assemblies
Technician’s Note: The 170SL is the “go-to” clamp for 5/16″ vinyl lines because vinyl has a thicker wall than poly tubing. If you’ve ever found a mysterious empty CO2 tank, a loose gas line is usually the culprit—these stepless clamps eliminate that risk. To install, you will need a pincer tool (like the Micro Matic MP-039). Simply slide the clamp over the tubing, insert the barb, and squeeze the “ear” until it is tightly crimped.






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