
Hi All,
I want to re-create this type of irrigation for my NFT. I've created the channels and would love for the refill water from the pump to go up this 25mm PVC and split into these tubes but don't know what they're called or how to find them. I understand the channels will need grommets but also not sure on how to install them.
I'd much rather do that than do the usual feeder pipes:

If anyone could help that would be awesome!
Cheers!