To complement our range of PVC wellscreen and casing we provide a range of top and bottom caps which provide simple, safe and easy borehole access.

Together with our range of security covers these ensure the highest degree of borehole integrity, avoiding the risk of contamination which is essential for environmental monitoring wells.



  • Sealing borehole tops
  • Gas sampling
  • Water sampling


  • DN35 to DN200
  • Made from PVC
  • Threaded or glued
  • Trapezoidal, TNA & BSP threads
  • Bottom & top caps