The ProHydro WD4 is a rugged secure well dock for 100mm bores.
When you need to hang Snap Samplers or only Level Loggers , this is the ideal dock to use
Three point PVC Pipe locking screw mounts
Easy twist off lockable lid
Removeable Well-Dock ring with four position Snap -Sampler dock and three Level logger Holes
Dual O ring seal for PVC and Lid