See
https://terrylove.com/forums/index.php?threads/poly-pipe-identification.94838/ and click the link. I suspect your green stripe means 100 psi.
For most wells, people don't bother with less than 160 psi today, I think.
If you have
https://www.ipexhomerite.com/produc...ipe-with-the-stripe/green-stripe-csa-100-psi/ are there any ASTM numbers?
I don't know the type of couplings that you need, but if you see ASTM D2239 printed, that would make it easy. I am pessimistic on that.
https://www.ipexna.com/media/12409/technical-manual-en-ipex-pipe-with-the-stripe.pdf
That says "Barbed insert fittings and compression fittings are commonly used to join polyethylene pipe, and are available in many styles.", and maybe it is the same ID as SIDR ASTM D2239 pipe -- the common sized pipe that uses barbs. So I am feeling more optimistic now.
The nice thing about SIDR pipe is that the ID is the same for different pressure ratings for a given nominal size. So the same barbs can be used for different pressure ratings.
EDIT:
https://www.ipexna.com/media/13044/bulletin-en-ipex-pipe-with-the-stripepdf.pdf makes me even more confident that the green stripe IPEX pipe will fit on regular barbed fittings used on SIDR pipe. So to tee this, you would insert a tee. You would use 6 stainless worm gear clamps -- two on each barb, and with the adjacent worms on opposite sides of the pipe.
Normally you have to heat the pipe, such as with boiling water, to let you stretch the pipe over the barbs.
