Ace Roto Mold


Ace Roto-Mold, a division of Den Hartog Industries, is well known for quality plastic tanks and accessories that fit a variety of industrial and agricultural containment needs. In addition to the extensive line of Liquid Storage & Containment tanks manufactured by Ace Roto-Mold, this division also produces Septic/Cistern tanks, Marine Products, and Custom Rotationally Molded products for a variety of industries.



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2013 Storage & Containment Catalog

Liquid Storage & Containment

From 2.5 gallons to 12,500 gallon capacities, the Ace Roto-Mold division can provide for your Liquid Storage & Containment requirements.

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Septic & Cistern 2008 Brochure


Ace Roto-Mold’s Septic/Cistern line leads the industry in strength and durability. Plastic Septic tanks are the future of watewater management.  Plastic Cistern tanks are FDA-approved to store potable water.

Marine Products

Marine products including float drums and dock accessories are rotationally molded to provide durability and excellent protection.


These lightweight, attractive, durable, and affordable flower pots have three cone-shaped legs. TRI-POTS are available in 20″ and 27″ diameters, and come in a variety of colors.

Custom Rotational Molding

Custom plastic products in a variety of shapes, sizes, colors, and materials can be developed with the help of our design and engineering team.

Den Hartog Industries, Inc. is a member of the: