Mainline Tubing


Mainline Tubing is the supply line for your drip irrigation system. 1/2″ inner diameter, 5/8″ outer diameter. Made with premium-grade polyethylene resins and it is backed by a 7-year warranty. 100 ft. roll.

Availability: In stock

Mainline Tubing, also known as supply line, is the backbone of your drip irrigation system. It connects your water hose to the drip tape that will be feeding your plants. This tubing is made with premium-grade polyethylene resins and is backed by a 7-year warranty. This tubing will supply water for drip lines to a maximum length of 100′ long. If your garden rows are longer than 100′ we suggest placing the tubing in the center of the plot and running drip lines in both directions to compensate for the row length restriction.

Mainline Tubing will have a bit of initial memory from being coiled into a roll. We suggest laying it in the sun for a day prior to drip installation so that the sun can warm the tubing and make it easier to straighten. It also helps to have a brick or something similar to hold down each end to keep it straight during installation. Mainline Tubing should be crimped on both ends using our Figure 8 End Clamps. If the lines need flushing, simply remove the Figure 8 End Clamps, flush the lines, and reinstall the end clamps.

Mainline Tubing Features

Our Mainline Tubing has a 1/2″ inner diameter and a 5/8″ outer diameter. It is pliable and can be curved to contour your garden plot. It cannot be bent at a sharp angle due to crimping that will occur. To create a 90 degree bend, use our Mainline Elbow or Mainline Tee fittings. This tubing can be reused for up to 7 years without any decline in performance. If row spacings change on your garden plot, you can plug existing holes with Goof Plugs and create new holes for new rows.

Weight 8 lbs
Dimensions 18 × 18 × 9 in


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