Main equipment of an NFT system. Made of 100% virgin HDPE and can be extruded at almost any length. Also named troughs, gullies or tubes. Related Articles: How to Utilize Crop Turn Tech for Maximum EfficiencyHumans of Hydroponics, feat. Latonya AssanahLearning CenterHumans of Hydroponics – Meet Jim Rigney of Lil Rooster FarmHow Much Time Does it Take to be a Farmer?