John Guest introduced a new line of Water Supply Kits for use in filtration systems, RO systems, water coolers, coffee brewers and most refrigerator hookups. No tools or Teflon tape required to make an easy and reliable leak-proof connection. The kits include everything you need for one application installation. The John Guest Water Supply Kit includes 25 feet of blue or white tubing, one Angle Stop Valve, ¼-inch, and one connector, ¼-inch.