Vertical Chemical Storage Tanks

Heavy-wall Elkhart Plastics tanks for liquids heavier than water. Choose a white 1.5 SG tank for liquids up to 12.5 lb/gal, or a light blue 1.9 SG tank for liquids up to 15.8 lb/gal. Sizes from 1,000 to 3,000 gallons, made in the USA. Not sure which rating you need? Call (866) 216-7996 or request a free quote.

Showing 1 – 8 of 8 results Showing all 8 results Showing the single result No results found
Sort by Price low to high
Filters Sort results
Reset Apply

1.5 SG vs. 1.9 SG: Which Tank Do You Need?

Both ratings use the same tank sizes and fittings. The difference is wall thickness, which sets how heavy a liquid the tank can safely hold.

1.5 SG · White1.9 SG · Light Blue
Max liquid weightUp to 12.5 lb/galUp to 15.8 lb/gal
WallsThicker than a standard water tankHeaviest walls in the line
Typical usesLiquid fertilizers, DEF, water treatment chemicals, waste oilHeavier fertilizer blends, brines, dense process liquids
Sizes1,000 / 1,500 / 2,500 / 3,000 gal1,000 / 1,500 / 2,500 / 3,000 gal
Fittings1.5" inlet, 2" outlet, 16" manway lid1.5" inlet, 2" outlet, 16" manway lid

How to Pick the Right Tank

1

Find your liquid's weight

Check the Safety Data Sheet (SDS) for specific gravity, or divide its weight per gallon by 8.33. Example: 11 lb/gal ÷ 8.33 = 1.32 SG.

2

Choose the rating

Pick a tank rated at or above your liquid's SG. Up to 1.5 SG, choose white. Between 1.5 and 1.9 SG, choose light blue. If you're close to the limit, size up.

3

Confirm compatibility

Make sure your chemical works with polyethylene and the fitting materials. Use the chart in the Elkhart Technical Guide or ask your supplier.

Frequently Asked Questions

Can I store acids or other aggressive chemicals?
Polyethylene resists many chemicals, but not all. Compatibility depends on the chemical, its concentration and temperature. Check the resistance chart in the Elkhart Technical Guide and your chemical supplier's guidance before ordering. Call us if you'd like help reviewing it.
Are the 1.5 and 1.9 SG tanks the same size as the water tanks?
Yes. They use the same dimensions (64" to 95" diameter) with heavier walls. The water tanks are black and rated 1.0 SG. See water storage tanks.
What temperature can these tanks handle?
Up to 120°F (49°C) sustained and 140°F (60°C) intermittent. Higher temperatures lower the tank's effective SG rating.
Can I add valves or extra fittings?
Yes. Additional fittings, valves and tie-down kits are available. Request a quote with what you need and we'll put it together.
How long do they take to ship?
Chemical tanks are made to order and typically ship in about 3 to 4 weeks, by freight from the manufacturer.
What's the warranty?
5 years from purchase, extended to 10 years if you register the tank with the manufacturer within 30 days. Read the full warranty.

Not Sure Which Rating You Need?

Send us your chemical's name or SDS and how much you need to store. We'll recommend the right tank and quote freight to your location.