What is this?!? How to connect nutrient supply to NFT channel ~ DIY Hydroponic system

Here are links to the items mentioned in the videos, I hope this helps someone!

Top hat grommet :

https://www.amazon.com/HORTIPOTS-Grom...

1/4" poly tubing:

https://www.amazon.com/Raindrip-01601...


Thanks for visiting my channel! Please check out my other videos, I have lots of info on DIY hydroponics! I use Deep water culture (dwc) nutrient film technique (nft) floating raft culture, slab culture, and more!