Our 1" Fittings will work with our 1" poly tube which is a 1.06 I.D. x 1.20 O.D.

I.D. = Inside Diameter / O.D. = Outside Diameter

In 1" size we offer a Spin-Loc style fitting but we also have a 1" compression insert. This insert will glue into any 1" size PVC Slip style fitting and allow you to use it as a compression fitting. Custom make any 1" compression fitting out of PVC......VERY Handy!  The compression insert is spec'ed to work only with 1.20 O.D. tubing.

The Spin-Loc is somewhat easier to install and an added feature is the ease of taking a fitting off if needed. Comes in handy more often than you might think!

In case you already have tubing the Spin-Loc style will work with tubing which has an I.D. of 1.035 to 1.075 and a wall thickness of .062 to .075.