The Enduraplas 1900 Gallon Black Horizontal Sump Bottom Leg Tank is a polyethylene horizontal leg tank built for transport: a horizontal body riding on integrated legs that drains toward the sump outlet. It carries 1,900 gallons, measures 130 inches long by 71 inches wide by 79 inches tall, and is molded in black polyethylene rated to a 1.9 specific gravity. That 1.9 SG rating is the headline spec here, and it is why this Enduraplas horizontal leg tank shows up in searches for a heavy-duty horizontal tank rather than a basic water hauler.
Will it work for your haul?
Plan around weight, not just volume. Filled with water (SG 1.0) this tank carries roughly 15,846 pounds of contents; at its full 1.9 SG rating it is built to hold up to about 30,107 pounds. The practical meaning of the 1.9 rating is simple: you can fill this tank for dense ag and chemical liquids - the kind that run heavier than water - without backing off capacity, where a 1.0 to 1.5 SG tank would force you to under-fill. Confirm your trailer, axles, and tie-down rating against the loaded weight before you fill, and check the 71 by 130 inch footprint against your deck. The horizontal leg design keeps the load low and stable for road transport. To match gallons and SG to your actual liquid, run the numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you commit.
Chemical compatibility
This tank is molded polyethylene rated to a 1.9 specific gravity - a rating that puts it at the top of the poly ladder and is why it carries the dense chemical and ag liquids below. The OEM chemical-resistance chart, which is concentration- and temperature-specific, lists this tank as compatible with the following at the noted concentrations, using the noted fitting and gasket materials:
- Acetic Acid 60% - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate 50% - PVC fittings, EPDM gaskets
- Calcium Chloride 40% - PVC fittings, EPDM gaskets
- DEF 32.5% - 316SS fittings, EPDM gaskets
- Ethylene Glycol 100% - PVC fittings, EPDM gaskets
- Ferric Chloride 50% - PVC fittings, EPDM gaskets
- Ferric Sulfate 60% - PVC fittings, EPDM gaskets
- Ferrous Sulfate 20% - PVC fittings, EPDM gaskets
- Hydrochloric Acid 37% - PVC fittings, Viton gaskets
- Hydrofluoric Acid 48% - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid 26% - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide 50% - PVC fittings, Viton gaskets
- Magnesium Chloride 30% - PVC fittings, EPDM gaskets
- Peracetic Acid 30% - 316SS fittings, Aflas gaskets
- Phosphoric Acid 85% - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate 50% - PVC fittings, EPDM gaskets
- Potassium Hydroxide saturated - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate 30% - PVC fittings, EPDM gaskets
- Sodium Hypochlorite <16.5% - PVC fittings, Viton gaskets
- Sodium Thiosulfate 40% - PVC fittings, EPDM gaskets
- Sulfuric Acid 98% - CPVC fittings, Viton gaskets
- Urea Solution 50% - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
The chart also rates this tank for ozonated water up to 10 PPM with PVC fittings and EPDM gaskets.
The mistake to avoid: matching a fitting or gasket to the wrong chemical. The default here is PVC fittings with EPDM gaskets, and the exceptions are a closed set. Four oxidizers call for Viton gaskets - sodium hypochlorite, hydrochloric acid, phosphoric acid, and hydrogen peroxide - and sulfuric acid goes a step further to CPVC fittings with Viton. Two chemicals require 316 stainless fittings: DEF and peracetic acid. Everything else on the list runs the standard PVC/EPDM. Spec the listed fitting and gasket material for your exact chemical and verify your concentration against the chart, since it is concentration- and temperature-specific. The full chemical compatibility resource is there for cross-checking before you put anything in the tank.
Freight and how to order
This tank ships LTL freight, quoted live to your ZIP, from the Enduraplas plant in Neche, North Dakota. Freight on a tank this size depends on distance and your delivery situation, so get your exact number with the Freight Cost Estimator rather than guessing, and see the technical drawing on this page for dimensional detail. For sizing and DOT/transport questions on hauling fertilizer and similar loads in leg tanks, the guides on applicator and leg tanks for fertilizer, loaf-style portable utility tanks and 49 CFR exemptions, and fertilizer-blend tank stratification are worth a read. Call 866-418-1777 with any questions before you order.
