The Well Cap in round version is used for closing groundwater observation wells without attaching a thread. Because of the small installation space and closeability from above, it is especially suited for underfloor observation wells inside a manhole. The lock is placed on top of the Well Cap which ensures a simple opening of the observation well.

Available sizes

2, 4, 4½, 5 and 6 inch 


  • Smooth plastic coating, so that a freezing in winter is almost impossible
  • optionally with 5- edge safety lock
  • No attachment of threads at the end of the pipe required; opening from above


  • 5- edge security lock