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Perma-Loc Tubing x MHT Tee Adapter

Product # 2148

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Product Description
This fitting is used to connect two pieces of poly tubing to female threads.

The Perma-Loc connector on this fitting is compatible with Drip Depot polyethylene tubing of the same size. 

About Drip Depot Perma-Loc Drip Irrigation Fittings:

Perma-Loc fittings are heavy duty reusable connectors, adapters and fittings for all your connection needs. They are very easy to use and require no special tools. Perma-Loc fittings are available for both Tubing and Tape. The Tubing connectors can be used on blank tubing as well as drip line.

  • To use: Simply push tubing or tape over barbed end, then hand-tighten locking nut over tubing or tape for a permanent secure fit.
  • To Remove: Just loosen locking nut, pull tube off and re-use as needed.

Perma-Loc fittings look similar to traditional flange and locking nut plumbing connections; however, in most cases, they work differently. Unlike a typical locking nut, which comes off the fitting and slides over the tubing, a Perma-Loc locking nut is usually not removed from the fitting. The exception to this rule are some of the larger 3/4" and above tubing fittings.  Select a video from above to see how the Perma-Loc drip irrigation tubing and tape fittings work.

Perma-Loc SizeAcceptable Inside Tubing DiameterAcceptable Wall Thickness
3/8 inch.510 to .580 inches.035 to .055 inches
1/2 inch.590 to .630 inches .025 to .050 inches
3/4 inch0.790 to 0.845 inches 0.045 to 0.065 inches
1 inch1.025 to 1.085 inches 0.045 to 0.065 inches

We carry 3/8" Perma-Loc fittings to convert smaller poly tubing to our 1/2" (or larger) tubing. The most common manufacturers of this type of tubing are:

  • RainDrip .520 ID (Inside Diameter)
  • RainBird .520 ID (Inside Diameter)
If you have an existing drip irrigation system with this size of tubing and you wish to expand it using Drip Depot poly tubing, you can use one or more of these adapters to make the different size tubing compatible.