<p><span size="4" style="font-size: large; color: #000000;"><meta charset="utf-8">Hydroviv refrigerator line systems are optimized for your city's water quality data, using your shipping zip code when you place your order. That means clean, fresh-tasting water right from the dispenser. What's more, installation is simple - connect to your refrigerator's water line using <a href="https://www.hydroviv.com/pages/15min-installation" title="Hydroviv Fridge Line Water Filter Installation" target="_blank">1/4 inch connections</a>.  </span></p> <p><span size="4" style="font-size: large; color: #000000;">All connection hardware is included for tapping into a plastic line, but if your line is braided stainless steel, you'll need an additional segment of tubing to complete the installation.  This 1/4" line can be purchased <a href="https://www.hydroviv.com/collections/water-filter-accessories-special-connections-spare-parts/products/refrigerator-filter-line" title="Braided Stainless Steel Line" target="_blank">here</a> or any hardware store. </span></p> <p> </p>