Author: Drip Depot Staff
Drip tubing comes in different sizes:
SPECIAL NOTE: If you plan on purchasing all of your 1/2" poly tubing and fittings from Drip Depot then the rest of this article does not apply to you since all 1/2" tubing and fittings carried by Drip Depot are compatible.
Unfortunately, drip tubing (also referred to as "poly tubing" because it is made from polyethylene) comes in different sizes and the different sizes are not compatible unless you use adapters. Poly tubing is measured in Inside Diameter (ID) and Outside Diameter (OD). Many times you will hear poly tubing referred to as 1/2" poly, 3/4" poly, 5/8" poly etc. These designations are generalities. In fact, 1/2" poly tubing can reffer to 3 different sizes, none of which are compatible with some fittings.
Drip Depot carries poly tubing in one size only which is .600" inside diameter (D) and .700" outside diameter (OD). If you purchase all of your items from Drip Depot you can be certain that they will all be compatible. However, If you have an existing drip system and you want to add to it, you'll need to ensure that you get the proper size tubing and parts or get the correct reducing coupling to mate the systems.
1/4" tubing (vinyl and poly) also comes in different sizes however, even different sizes of 1/4" tubing will usually work together.
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