For use with the Hydroponic Tower design by Dextera. 

I created a simple mod for those who feel that the tower sways too much. This will firm up the connections.

Here's a link to Dextera's design; 

https://makerworld.com/en/models/640229-hydroponic-tower-complete-revised?replyId=3096687&replyType=4#profileId-566060