Description Detailed Specs Downloads Reviews Description RAM MOUNTS, RAM BASE 1.5" DIA. BALL FOR 1/2" NPT Detailed Specs MFG Part Number RAM-330U Product Type Accessory configuration Ram Mounts, RAM base 1.5" DIA. ball for 1/2" NPT null null null null null null null null null null Downloads Reviews The Ram Mounts RAM-330U is also known as RAM -RAM330U or RAM330U