RAM® Ball Adapter with 1/2" NPT Hole & Tightening Knob

The RAM-330U consists of a 1.5" Diameter Ball, attached to a clamp base with a hole for 1/2" NPT pipes. 

Features:

• Hardware Included: Assembly Hardware
• Ball Size: c Size (1.5")
• Weight Capacity: Standard Use: 4 lbs/Heavy-Duty Use: 3 lbs 
• Materials: Marine-grade aluminum
• Weight: 0.35lbs