PCSL® Waterproof Cable Repair Joint Enclosure - Including 10 Gel Crimps, for use above or below ground for repair of telephone and data cables : Amazon.co.uk: Electronics & Photo
MutecPower 10m CAT6 Outdoor waterproof Direct Burial Ethernet Network Cable - UTP - CCA - 550 Mhz - Black 10 meter with Cable Ties : Amazon.co.uk: Computers & Accessories
3 Core Pond Rubber Flex Cable Black 1.5mm_ (25m) - Waterproof Cable connector IP