This is a universal mast mount for mounting on top of any support pipe 40-46mm in diameter. Side mounting on vertical pole Ø20-58mm. The mount is versatile and can be mounted on top of poles with the brackets mounted from the front and on both horizontal and vertical poles when rear mounted. This mount is manufactured in premium quality materials in order to prevent galvanic corrosion. The mount is always subject for improvement. The mount has the same rugged design as all other AC Antennas products thus it withstands harsh environmental conditions, both on Sea and Land.