DenHartog Search: Search TECHNICAL GUIDELINES PRODUCT APPLICATION GUIDELINES Products Divisions About Us Careers Boat Lift Tanks Marine Products Products > Marine Products > Boat Lift Tanks Boat Lift Tanks Boat lift floats are large air tanks that can be filled with water to submerge them and then re-floated by evacuating the water with air pressure. All Boat lift floats come with a wall thickness of .375”. Our boat lift floats were designed initially for manufacturers of boat lifts, as a mechanism to raise and lower a lift platform. However, many individuals have used these floats to build their own boat lifts. ACE offers a 5-Year Boat Lift Tank Warranty on all of its manufactured air-filled boat lift tank products to the original owner. **Den Hartog Industries, Inc. does not recommend use of this product for any other purpose than that of the intended use as described above** Boat Lift Design Our boat lift floats come in eight different sizes with round and square bottom designs. All come with threaded inserts ready for commercial fittings and a large molded-in hole in the bottom for water intake and exhaust. Molded in mounting slots in the top of each float and molded in grooves make attachment to a boat lift frame easy. Part No. Weight Dimensions Buoyancy AT2630-60 85 26 x 30 x 60 1000 AT3030-72SQ 104 30 x 30 x 72 2150 AT3030-90 130 30 x 30 x 90 2000 AT3030-90SQ 160 30 x 30 x 90 2600 AT3240-108 200 32 x 40 x 108 3700 AT3240-108SQ 230 32 x 40 x 108 4500 AT3240-144SQ 300 32 x 40 x 144 6600 AT4848-20SQ 93 48 x 48 x 20 1304 Part No. Weight Dimensions Buoyancy Our Products Liquid Storage & Containment Accessory Parts Septic / Cistern OEM Custom Marine Products Sowjoy Snow Pushers Our Divisions Ace Roto Mold - Rotational Molding Injection Molding - Custom Injection Molding Blow Molding - Custom Blow Molding Sowjoy - Metal Fabrication About Us About Den Hartog Contact Us Technical Guidelines Product Application Guidelines Frequently Asked Questions Press Room Employment Find a Local Sales Rep Miscellaneous Sales Rep Login DenHartog Website by Bass Advertising © Copyright 2021. Den Hartog Industries, Inc. 4010 Hospers Drive South, PO Box 425 Hospers, Iowa 51238 712-752-8432 sales@denhartogindustries.com | www.denhartogindustries.com