RAM Mount RAM Double Ball Adapter w/1/2" NPT Threaded Hole [RAM-217-3U] Marine Hardware | Shaft Seals but look at the features

but look at the features and you're sure to see that the AquaT is far from ordinary

RAM® Hand-Track™ Center Connector with 15" Track Extension

Diameter (Inches): 6"

Output wave form: Modified sine wave

Needed when top thickness is not sufficient to support outrigger bases

RAM Mount RAM Double Ball Adapter w/1/2" NPT Threaded Hole [RAM-217-3U] Marine Hardware | Shaft Seals but look at the featuresRAM Double Ball Adapter with 1 2" NPT Threaded Hole Specifications: Ball Size: C Size (1. 5") Weight Capacity: Standard Use: 4lbs, Heavy Duty Use: 3lbs Materials: Marine grade aluminum Packaging Type: Poly Bag Weight: 0. 4 lbs