An ice maker supply line delivers water from a household shut‑off valve to the ice maker inside a refrigerator. Selecting the right hose ensures clean water, prevents leaks and helps your appliance operate efficiently.

Types and materials

• Braided stainless steel: A flexible hose with a stainless steel wire braid around a reinforced PVC or PEX inner tube. It resists kinking and corrosion and is rated for pressures around 125 psi. Common sizes are 1/4 inch diameter with lengths from 5 feet to 25 feet.
• Polyethylene tubing: A food‑grade plastic tube used in some kits. It is inexpensive and easy to cut to length. It should be certified for potable water use (e.g., NSF 61).
• Compression fittings: End fittings are typically lead‑free brass compression nuts with ferrules that seal onto the shut‑off valve and the refrigerator inlet.

Key features

• Corrosion resistance: Stainless steel braiding or quality plastic resists rust and chemical degradation.
• Flexibility: The tubing must bend gently to reach the appliance without kinking, which can restrict flow or cause leaks.
• Certification: Look for supply lines certified to NSF/ANSI 61 or cUPC standards for drinking water safety.

Installation tips

1. Turn off the water supply at the angle stop valve and disconnect any old tubing.
2. If using braided stainless steel, choose a length that allows a smooth loop without stretching. For polyethylene tubing, cut to length with a clean, square cut.
3. Slide the compression nut and ferrule onto the tubing (if not pre‑installed). Push the tube onto the valve or fridge inlet until it seats fully.
4. Tighten the compression nut by hand, then use a wrench for an additional quarter turn. Do not over‑tighten, as this may crush the ferrule.
5. Turn on the water and flush the line for several minutes to clear any debris. Check both ends for leaks and tighten slightly if necessary.
6. Secure the tubing behind the refrigerator with clips or straps to prevent movement and vibration.

By choosing a certified, kink‑resistant ice maker supply line and installing it carefully, you can ensure reliable water delivery to your refrigerator and avoid messy leaks.