From the Loftsmith community

2" net cup holder with screw lock

Holds a 2" net cup steady in a hydroponic lid so your plant sits where you put it. A threaded ring screws on from above and clamps the cup against the lid, with a knurled edge that's easy to grip with wet hands. Change the lid hole and lid thickness to fit your own lid.

2 parts · 27 g · 80 × 80 × 26 mm