The Enduraplas 100 Gallon Black Horizontal Leg Tank is a low-profile haul tank built for field-applied liquids, with a 1.9 specific-gravity rating that lets it run heavier chemistries than a standard water tank. It holds 100 gallons inside a 21" tall, 41" wide, 46" long polyethylene body, so it fits under a sprayer boom, on a utility trailer, or in a pickup bed where headroom is tight. The integrated leg design helps it sit stable on a flat deck.
Will it work for your job
At 100 gallons of water the tank carries roughly 834 lb of contents, and its 41.0 x 46.0 footprint is the dimension to confirm against your trailer or deck before you buy. The 1.9 SG rating is the number that matters most: it means the wall thickness is rated for liquids up to 1.9 times the weight of water, giving a maximum rated contents weight of 1,585 lb. At 1.9 specific gravity this is already the heaviest-duty poly rating offered for this tank, so there is no higher-SG step-up to move to if you need more margin. That headroom is why this leg tank shows up in searches for a 100 gallon tank, a horizontal tank, and a leg tank for fertilizer and field chemical work. If you are sizing a fleet of these or matching capacity to an application rate, run the numbers through our Tank Sizing Calculator and review the Tank Sizing Guide. One practical note: confirm your actual fill weight against the 1,585 lb ceiling — for a mid-density field chemical near 1.4 SG you would carry roughly 1,170 lb of contents (verify the density of your specific liquid), which leaves real margin under the rating.
Chemical compatibility
This is a polyethylene tank with a 1.9 SG rating. The resin is listed as HDLPE but flagged for confirmation — confirm the exact polyethylene resin with us before committing it to chemical service, because crosslinked and linear polyethylene differ in long-term resistance. This tank's fitting configuration also isn't specified in our data, so confirm outlet size and bulkhead placement with us before ordering, since the chemical you run dictates the fitting and gasket material below. Always size fitting and gasket materials to the chemical, per the OEM chemical-resistance chart at your specific concentration and temperature:
- Acetic Acid (60%) — PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) — PVC, EPDM
- Calcium Chloride (40%) — PVC, EPDM
- DEF (32.5%) — 316SS fittings, EPDM
- Ethylene Glycol (100%) — PVC, EPDM
- Ferric Chloride (50%) — PVC, EPDM
- Ferric Sulfate (60%) — PVC, EPDM
- Ferrous Sulfate (20%) — PVC, EPDM
- Hydrochloric Acid (37%) — PVC, Viton
- Hydrofluoric Acid (48%) — PP/PVC, Viton
- Hydrofluosilicic Acid (26%) — PP/PVC, Viton
- Hydrogen Peroxide (50%) — PVC, Viton
- Magnesium Chloride (30%) — PVC, EPDM
- Peracetic Acid (30%) — 316SS, Aflas
- Phosphoric Acid (85%) — PVC, Viton
- Polyaluminum Chloride — PVC, EPDM
- Potassium Carbonate (50%) — PVC, EPDM
- Potassium Hydroxide (saturated) — PVC, EPDM
- Propylene Glycol — PP/316SS, EPDM
- Sodium Bisulfate — PVC/PP, EPDM
- Sodium Bisulfite — PVC/PP, EPDM
- Sodium Carbonate (30%) — PVC, EPDM
- Sodium Hypochlorite (<16.5%) — PVC, Viton
- Sodium Thiosulfate (40%) — PVC, EPDM
- Sulfuric Acid (98%) — CPVC, Viton
- Urea Solution (50%) — PP/PVC, EPDM
- Zinc Orthophosphate — PP/316SS, EPDM
- Ozonated Water (up to 10 PPM) — PVC, EPDM
The clean way to read that table is by gasket: EPDM covers the salts, glycols, DEF, and urea; Viton is called for on the strong acids and on sodium hypochlorite; Aflas is specific to peracetic acid; and a few duties step up to metal or CPVC hardware — 316SS on DEF and peracetic acid, CPVC on 98% sulfuric acid. The most common mistake on a tank like this is matching the gasket to the wrong chemical, so do not carry an acid on the EPDM you used for salts. Entries shown without a percentage have no concentration on file — confirm your exact strength before relying on the listed fitting and gasket pairing, and verify every duty against the OEM chart for your service temperature. See our full chemical compatibility reference for the detail behind each chemical.
Freight
This tank ships LTL freight from Neche, ND, quoted live to your ZIP. Get an instant number with our Freight Cost Estimator before you order, or call 866-418-1777 and we will book it. If you are spec'ing leg or applicator tanks for fertilizer and DOT non-roadable use, our guide on applicator and leg tanks for fertilizer and our writeup on fertilizer-blend tank stratification are worth a read before you fill it.
