3/4 Inch CTS Tuff Tube, 100 Foot Roll - Blue Color. The tubing has a 3/4 Inch nominal size and comes in a 100 foot roll which is great for larger applications that require a long distance of tubing. It is important to note that this tubing will use 3/4 inch PEX/Poly fittings such as, Barbed or Compression connection fittings. This Tuff Tube is great for a wide variety of plumbing, irrigation and waste distribution applications. Tuff Tube has become an alternative to the classic plumbing pipes including Copper, PVC and CPVC. The main advantage to working with tuff tube is that it is easy moldable, especially for tight areas where there just isn’t room for multiple pipe fittings to get the tubing from point A to B, but still provides incredible durability and strength. Potable water distribution and municipal service systems are two of the most popular applications for tuff tube and help to save time and effort while still getting the same durability and reliability out of your water systems.