Specifications:
The document outlines specifications for 4-post boat lifts with 2 cradle beams and 4 cables. The lifts are available in various capacities: 20,000 LB, 16,000 LB, 13,000 LB, 10,000 LB, 7,000 LB, and 4,500 LB. The lifts are designed with different tube diameters and lengths, and they operate on various power configurations, including 230V/11A and 230V/22A.

Procedures and Recommendations:
It is recommended that the site for installation be verified by a licensed marine contractor. The document specifies that the company is not responsible for the dock structure or its ability to resist the applied loads of the boat lift. Applied loads will be provided upon request.

Technical Details:
The lifts feature different gear ratios (30:1, 60:1) and horsepower configurations (e.g., (2)1 HP, (2)2 HP). The document includes detailed measurements for typical boat house lift dimensions and cable drop specifications.

Tables and Data:
Tables in the document provide detailed configurations for the Alumavator lifts, including dimensions and capacities. Key measurements include lift heights, cable drop lengths, and bottom of drive pipe dimensions.