Bulkhead fitting contoured to the shape of a 4" PVC tube for a better water seal.
Will update the description with the o-ring sizes that I used.
My other 4" PVC pipe designs:
Hydroponics 4" pipe clamp for use with 3mm paracord
Hydroponics Net Cup / Pot System for 4inch PVC Pipe
bolt.stl | 220.2KB | |
drain.stl | 570.8KB | |
hydro_-_drain_v10.f3d | 172.1KB |