You'll need the Supply line kit to get the water from your source to your plants with this high quality, super flexible, almost kink-proof silicone tubing kit.

What it comes with? Think of how much tubing you will need to get from your reservoir and to all of your plants. If you have 1 grow tent, you can get a Small setup, but if you have 2 tents or they are further from the reservoir you will need more tubing and possible more T's. The tubing is super flexible so the T's aren't always necessary. 

Small: 

25' 8 mm Superflex tubing

2 x Shut off valves

2 x 8mm T's 

1 x 8mm Elbow

Medium: 

50' 8 mm Superflex tubing

2 x Shut off valves

4 x 8mm T's 

1 x 8mm Elbow

Large:

100' 8 mm Superflex tubing

2 x Shut off valves

4 x 8mm T's 

1 x 8mm Elbow