The Enduraplas 3200 Gallon Plastic Horizontal Leg Tank (SKU THF03200BK) is a cylinder-on-its-side tank that rides on its own molded support legs, built for setups where the tank sits in a fixed cradle or on a skid and has to stay put. It measures 145 in long by 97 in wide by 79 in high, so it sets low and wide rather than tall. Those dimensions are launch-verified, which means you can size leg spacing, cradle length, and rack width to it with confidence before you build or buy the support structure.
Will it work for your setup?
At a rated 3200 gallons, a full charge of water weighs 26,688 lb. That single number governs your whole install. Whatever carries this tank — a welded steel cradle, a trailer frame, or a poured pad — has to hold more than thirteen tons across the 97 x 145 in footprint, plus a safety margin. Run your own load case through the Tank Sizing Calculator and the Tank Sizing Guide before you commit to a support design, and note that 26,688 lb assumes water at a specific gravity of 1.0. The horizontal-leg design distributes that weight through the legs, but the legs only do their job when they sit flat and are fully supported along their length — a leg bridging a gap is where these tanks crack. Check the technical drawing on this page for leg placement and cap geometry as you lay out the cradle.
Fittings and specific-gravity rating
The outlet and fitting configuration and the rated specific gravity for this SKU are confirmed per order rather than published on the page, so we won't guess at an outlet size or a bulkhead here. Before you finalize plumbing or load anything heavier than water, call 866-418-1777 and we'll confirm the exact fitting layout and the SG rating Enduraplas assigns to this unit. That matters because the temptation with a tank like this is to fill it with liquid fertilizer or another dense blend well above 1.0 specific gravity. A tank sized around a 1.0 fluid and loaded with a 1.4 SG product is carrying 40% more weight than the walls and legs were designed for, and on a moving trailer that overload finds the weakest leg. Do not assume it will hold a heavy fluid until the rating is confirmed.
Freight and next steps
A 145-inch horizontal leg tank at 3200 gallons moves as LTL freight, not parcel. We quote the exact cost to your ZIP code — use the Freight Cost Estimator for a live number or call 866-418-1777. Have your site access and offload equipment ready before it rolls, because a tank this size needs room and a forklift or loader to set. If you're running blended fertilizer, read our guide on fertilizer-blend tank stratification and field verification before you load, and for fleet and trailer questions our write-ups on applicator and leg tanks and DOT non-roadable trailer scope and the 49 CFR 173.5 agricultural exemption lay out where these tanks legally fit. Questions on cradles, fittings, or SG rating reach a person who works with these tanks every day.
