Schneider Electric Coupler, Conduit Fitting, 20mm Nominal Size, uPVC, White

Couplers - PVC straight couplers for joining lengths of conduit
Adapters - supplied with PVC locknuts (male) or bushes (female) which enable conduit to be terminated at a panel or bulkhead
Saddles - space bar saddles moulded in rigid PVC complete with fixing screws
Surface Mount Boxes - various configurations, 32mm depth suitable for mounting socket and switch faceplates. Boxes are non-brittle for ease of drilling and come with knockouts to allow conduit entry.

BS4607 & BS6099