This cable enclosure has been designed to protect F-type connectors for 7mm satellite dish or TV antenna coaxial cable. There is enough room inside to place two male F type plugs and a female-female socket adapter. Overall size is 20mm x 20mm x 70mm. You have to put silicone sealant mastic between the two sides and around the cable to make the connection waterproof. Then it is fastened with 4 x M3 12mm bolts. This is an open-source design. FreeCAD file is provided. Feel free to modify this thing at your convenience. Good design is hard work, even small donations are welcome.