For the sealing of groundwater observation wells. Especially suitable for temporary installation during a construction phase. Also available with O-ring to prevent entry of surface water.

The plastic cap is used for temporary closing of groundwater observation sites. After usage the cap can be removed again.

Available sizes

Available sizes

1¼, 1½ and 2 inch


  • The width of the cap is adapted to the pipe diameter
  • Made of UV-resistant plastic
  • Opening from above


  • O-ring sealing, for protection against surface water entry