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Double Wall Tanks

Tank-within-a-tank storage in HDPE, polypropylene and PVDF. Every size below is listed with live dimensions and prices.

Choose your resin

Double Wall Tanks in Three Resins

Pick the resin by chemical and temperature, then choose the size.

HDPE Double Wall

Up to 120°F

The most economical choice for most acids, caustics, bleach, DEF and glycol.

See sizes & prices

Polypropylene Double Wall

Up to 200°F

For hot caustics and chemicals that run too warm for polyethylene.

See sizes & prices

PVDF Double Wall

Up to 275°F*

Kynar® PVDF for oxidizers, concentrated acids and high-purity service.

See sizes & prices

Insulated Double Wall

Freeze protection

Containment plus foam insulation, with heat tracing available.

See sizes & prices

*PVDF up to 275°F in some applications; see each chemical’s page.

HDPE Double Wall Tanks

47 HDPE double wall vertical tanks from 100 to 10,000 gallons, priced from $1,099 to $69,999. Available in 1.5, 1.9 and 2.2 SG ratings and white and opaque white.

HDPE Double Wall Tanks
10,000 Gallon HDPE Double Wall Vertical Tank 1.9 SG 10,000 202" Height x 141" Diameter 16 ft 10 in H × 11 ft 9 in dia. 1.9 White $69,999.00
10,000 Gallon HDPE Double Wall Vertical Tank 1.5 SG 10,000 202" Height x 141" Diameter 16 ft 10 in H × 11 ft 9 in dia. 1.5 White $54,999.00
8,400 Gallon HDPE Double Wall Vertical Tank 1.9 SG 8,400 197" Height x 141" Diameter 16 ft 5 in H × 11 ft 9 in dia. 1.9 White $44,999.00
8,400 Gallon HDPE Double Wall Vertical Tank 1.5 SG 8,400 185" Height x 141" Diameter 15 ft 5 in H × 11 ft 9 in dia. 1.5 White $41,999.00
8,000 Gallon HDPE Double Wall Vertical ASTM Tank 1.9 SG 8,000 182" Height x 142" Diameter 15 ft 2 in H × 11 ft 10 in dia. 1.9 White $31,999.00
8,000 Gallon HDPE Double Wall Vertical ASTM Tank 1.5 SG 8,000 182" Height x 142" Diameter 15 ft 2 in H × 11 ft 10 in dia. 1.5 White $26,999.00
6,500 Gallon HDPE Double Wall Vertical Tank 1.9 SG 6,500 196" Height x 120" Diameter 16 ft 4 in H × 10 ft dia. 1.9 White $35,999.00
6,500 Gallon HDPE Double Wall Vertical Tank 1.5 SG 6,500 196" Height x 120" Diameter 16 ft 4 in H × 10 ft dia. 1.5 White $37,499.00
6,000 Gallon HDPE Double Wall Vertical Tank 1.5 SG 6,000 182" Height x 120" Diameter 15 ft 2 in H × 10 ft dia. 1.5 White $23,999.00
6,000 Gallon HDPE Double Wall Vertical Tank 1.9 SG 120 in. 6,000 182" Height x 120" Diameter 15 ft 2 in H × 10 ft dia. 1.9 White $27,999.00
6,000 Gallon HDPE Double Wall Vertical Tank 2.2 SG 120 in. 6,000 182" Height x 120" Diameter 15 ft 2 in H × 10 ft dia. 2.2 White $30,999.00
6,000 Gallon HDPE Double Wall Vertical Tank 1.9 SG 120 in. Opaque White 6,000 182" Height x 120" Diameter 15 ft 2 in H × 10 ft dia. 1.9 Opaque White $28,999.00
5,000 Gallon HDPE Double Wall Vertical Tank 1.5 SG 120 in. 5,000 152" Height x 120" Diameter 12 ft 8 in H × 10 ft dia. 1.5 White $18,899.00
5,000 Gallon HDPE Double Wall Vertical Tank 141 Dia 1.9 SG 5,000 114" Height x 142" Diameter 9 ft 6 in H × 11 ft 10 in dia. 1.9 White $22,746.00
5,000 Gallon HDPE Double Wall Vertical Tank 1.9 SG 102 in. 5,000 178" Height x 102" Diameter 14 ft 10 in H × 8 ft 6 in dia. 1.9 White $22,399.00
5,000 Gallon HDPE Double Wall Vertical Tank 1.5 SG 102 in. 5,000 178" Height x 102" Diameter 14 ft 10 in H × 8 ft 6 in dia. 1.5 White $19,299.00
5,000 Gallon HDPE Double Wall Vertical Tank 2.2 SG 102 in. 5,000 178" Height x 102" Diameter 14 ft 10 in H × 8 ft 6 in dia. 2.2 White $27,999.00
4,200 Gallon HDPE Double Wall Vertical Tank 1.9 SG 4,200 132" Height x 119" Diameter 11 ft H × 9 ft 11 in dia. 1.9 White $19,999.00
4,000 Gallon HDPE Double Wall Vertical Tank 1.9 SG 4,000 127" Height x 120" Diameter 10 ft 7 in H × 10 ft dia. 1.9 White $18,499.00
4,000 Gallon HDPE Double Wall Vertical Tank 2.2 SG 4,000 127" Height x 120" Diameter 10 ft 7 in H × 10 ft dia. 2.2 White $19,499.00
4,000 Gallon HDPE Double Wall Vertical Tank 1.5 SG 4,000 127" Height x 120" Diameter 10 ft 7 in H × 10 ft dia. 1.5 White $17,499.00
3,450 Gallon HDPE Double Wall Vertical Tank 1.9 SG Norwesco 3,450 120" Height x 102" Diameter 10 ft H × 8 ft 6 in dia. 1.9 White $12,999.00
3,000 Gallon HDPE Double Wall Vertical Tank 1.9 SG 3,000 117" Height x 102" Diameter 9 ft 9 in H × 8 ft 6 in dia. 1.9 White $9,999.00
3,000 Gallon HDPE Double Wall Vertical Tank 1.5 SG 3,000 117" Height x 102" Diameter 9 ft 9 in H × 8 ft 6 in dia. 1.5 White $8,899.00
3,000 Gallon HDPE Double Wall Vertical Tank 2.2 SG 3,000 117" Height x 102" Diameter 9 ft 9 in H × 8 ft 6 in dia. 2.2 White $10,499.00
2,500 Gallon HDPE Double Wall Vertical Tank 1.9 SG 102 in. 2,500 100" Height x 102" Diameter 8 ft 4 in H × 8 ft 6 in dia. 1.9 White $11,499.00
2,500 Gallon HDPE Double Wall Vertical Tank 1.5 SG 2,500 100" Height x 102" Diameter 8 ft 4 in H × 8 ft 6 in dia. 1.5 White $7,699.00
2,500 Gallon HDPE Double Wall Vertical Tank 1.9 SG 95 in. 2,500 117" Height x 95" Diameter 9 ft 9 in H × 7 ft 11 in dia. 1.9 White $7,999.00
2,100 Gallon HDPE Double Wall Vertical Tank 1.9 SG 95 in. 2,100 89" Height x 95" Diameter 7 ft 5 in H × 7 ft 11 in dia. 1.9 White $7,499.00
2,100 Gallon HDPE Double Wall Vertical Tank 1.5 SG 95 in. 2,100 89" Height x 95" Diameter 7 ft 5 in H × 7 ft 11 in dia. 1.5 White $6,699.00
2,000 Gallon HDPE Double Wall Vertical Tank 1.9 SG 85 in. 2,000 120" Height x 85" Diameter 10 ft H × 7 ft 1 in dia. 1.9 White $7,199.00
2,000 Gallon HDPE Double Wall Vertical Tank 1.5 SG 84 in. 2,000 120" Height x 84" Diameter 10 ft H × 7 ft dia. 1.5 White $6,699.00
1,550 Gallon HDPE Double Wall Vertical Tank 1.9 SG 74 in. 1,550 125" Height x 74" Diameter 10 ft 5 in H × 6 ft 2 in dia. 1.9 White $4,599.00
1,250 Gallon HDPE Double Wall Vertical Tank 1.9 SG 87 in. 1,250 115" Height x 87" Diameter 9 ft 7 in H × 7 ft 3 in dia. 1.9 White $7,999.00
1,000 GALLON HDPE DOUBLE WALL VERTICAL Tank 1.9 SG 64 INCH 1,000 89" Height x 64" Diameter 7 ft 5 in H × 5 ft 4 in dia. 1.9 White $3,499.00
1,000 GALLON HDPE DOUBLE WALL VERTICAL Tank 1.5 SG 64 INCH 1,000 89" Height x 64" Diameter 7 ft 5 in H × 5 ft 4 in dia. 1.5 White $2,699.00
1,000 GALLON HDPE DOUBLE WALL VERTICAL Tank 2.2 SG 64 INCH 1,000 89" Height x 64" Diameter 7 ft 5 in H × 5 ft 4 in dia. 2.2 White $3,699.00
800 Gallon HDPE Double Wall Vertical Tank 1.9 SG 800 75" Height x 64" Diameter 6 ft 3 in H × 5 ft 4 in dia. 1.9 White $3,150.00
700 Gallon HDPE Double Wall Vertical Tank 1.9 SG 700 98" Height x 60" Diameter 8 ft 2 in H × 5 ft dia. 1.9 White $2,199.00
650 Gallon HDPE Double Wall Vertical Tank 1.9 SG 650 97" Height x 48" Diameter 8 ft 1 in H × 4 ft dia. 1.9 White $1,999.00
550 Gallon HDPE Double Wall Vertical Tank 1.9 SG 550 84" Height x 48" Diameter 7 ft H × 4 ft dia. 1.9 White $2,499.00
500 Gallon HDPE Double Wall Vertical Tank 1.9 SG 500 71" Height x 60" Diameter 5 ft 11 in H × 5 ft dia. 1.9 White $2,299.00
300 Gallon HDPE Double Wall Vertical Tank 1.9 SG 300 79" Height x 48" Diameter 6 ft 7 in H × 4 ft dia. 1.9 White $1,899.00
265 Gallon HDPE Double Wall Vertical Tank 1.9 SG 265 91" Height x 35" Diameter 7 ft 7 in H × 2 ft 11 in dia. 1.9 White $1,599.00
200 Gallon HDPE Double Wall Vertical Tank 1.9 SG 200 69" Height x 35" Diameter 5 ft 9 in H × 2 ft 11 in dia. 1.9 White $1,499.00
150 Gallon HDPE Double Wall Vertical Tank 1.9 SG 150 57" Height x 35" Diameter 4 ft 9 in H × 2 ft 11 in dia. 1.9 White $1,099.00
100 Gallon HDPE Double Wall Vertical Tank 1.9 SG 100 38" Height x 35" Diameter 3 ft 2 in H × 2 ft 11 in dia. 1.9 White $1,499.00

SG (specific gravity) is the heaviest liquid a tank is built to hold. Water is 1.0, so a 1.9 SG tank is made for liquids up to 1.9 times as heavy as water. Choose an SG rating at or above the specific gravity of your liquid.

Polypropylene Double Wall Tanks

13 Polypropylene double wall vertical tanks from 100 to 5,000 gallons, priced from $1,999 to $64,999. Available in 1.9 SG rating and translucent white.

Polypropylene Double Wall Tanks
5,000 Gallon Polypropylene Double Wall Vertical Tank 5,000 175" Height x 102" Diameter 14 ft 7 in H × 8 ft 6 in dia. 1.9 Translucent White $64,999.00
3,000 Gallon Polypropylene Double Wall Vertical Tank 3,000 117" Height x 102" Diameter 9 ft 9 in H × 8 ft 6 in dia. 1.9 Translucent White $26,998.00
2,500-Gallon Polypropylene Double Wall Vertical Tank 1.9 SG 2,500 117" Height x 95" Diameter 9 ft 9 in H × 7 ft 11 in dia. 1.9 Translucent White $18,999.00
2,000 Gallon Polypropylene Double Wall Vertical Tank 1.9 SG 84 in. 2,000 121" Height x 84" Diameter 10 ft 1 in H × 7 ft dia. 1.9 Translucent White $13,999.00
1,550 Gallon Polypropylene Double Wall Vertical Tank 1,550 125" Height x 74" Diameter 10 ft 5 in H × 6 ft 2 in dia. 1.9 Translucent White $9,899.00
1,000 Gallon Polypropylene Double Wall Vertical Tank 1,000 89" Height x 64" Diameter 7 ft 5 in H × 5 ft 4 in dia. 1.9 Translucent White $7,999.00
700 Gallon Polypropylene Double Wall Vertical Tank 700 98" Height x 60" Diameter 8 ft 2 in H × 5 ft dia. 1.9 Translucent White $6,399.00
650 Gallon Polypropylene Double Wall Vertical Tank 650 98" Height x 48" Diameter 8 ft 2 in H × 4 ft dia. 1.9 Translucent White $4,999.00
550 Gallon Polypropylene Double Wall Vertical Tank 550 86" Height x 48" Diameter 7 ft 2 in H × 4 ft dia. 1.9 Translucent White $3,999.00
300 Gallon Polypropylene Double Wall Vertical Tank - 48 300 79" Height x 48" Diameter 6 ft 7 in H × 4 ft dia. 1.9 Translucent White $3,699.00
265 Gallon Polypropylene Double Wall Vertical Tank 265 91" Height x 35" Diameter 7 ft 7 in H × 2 ft 11 in dia. 1.9 Translucent White $3,299.00
200 Gallon Polypropylene Double Wall Vertical Tank 200 69" Height x 35" Diameter 5 ft 9 in H × 2 ft 11 in dia. 1.9 Translucent White $2,999.00
100 Gallon Polypropylene Double Wall Vertical Tank 1.9 SG 100 64" Height x 31" Diameter 5 ft 4 in H × 2 ft 7 in dia. 1.9 Translucent White $1,999.00

SG (specific gravity) is the heaviest liquid a tank is built to hold. Water is 1.0, so a 1.9 SG tank is made for liquids up to 1.9 times as heavy as water. Choose an SG rating at or above the specific gravity of your liquid.

PVDF Double Wall Tanks

6 PVDF double wall vertical tanks from 100 to 1,000 gallons, priced from $15,500 to $99,999. Available in 1.9 SG rating and translucent white and white.

PVDF Double Wall Tanks
1,000 Gallon PVDF Double Wall Vertical Tank 1.9 SG 1,000 89" Height x 64" Diameter 7 ft 5 in H × 5 ft 4 in dia. 1.9 Translucent White $99,999.00
700 Gallon PVDF Double Wall Vertical Tank 1.9 SG 700 98" Height x 60" Diameter 8 ft 2 in H × 5 ft dia. 1.9 Translucent White $59,990.00
550 Gallon PVDF Double Wall Vertical Tank 1.9 SG 550 84" Height x 48" Diameter 7 ft H × 4 ft dia. 1.9 Translucent White $99,999.00
300 Gallon PVDF Double Wall Vertical Tank 1.9 SG 48 in. Dia. 300 78" Height x 48" Diameter 6 ft 6 in H × 4 ft dia. 1.9 White $99,999.00
200 Gallon PVDF Double Wall Vertical Tank 1.9 SG 200 69" Height x 35" Diameter 5 ft 9 in H × 2 ft 11 in dia. 1.9 White $99,999.00
100 Gallon PVDF Double Wall Vertical Tank 1.9 SG 100 63" Height x 31" Diameter 5 ft 3 in H × 2 ft 7 in dia. 1.9 White $15,500.00

SG (specific gravity) is the heaviest liquid a tank is built to hold. Water is 1.0, so a 1.9 SG tank is made for liquids up to 1.9 times as heavy as water. Choose an SG rating at or above the specific gravity of your liquid.

How it works

A Tank Inside a Tank

Built-in containment

If the inner tank ever leaks, the outer tank holds the chemical. No separate dike or basin to build.

Fumes stay inside

The sealed outer tank keeps vapors from a leak contained instead of spreading across a dike.

Assembled in Willis, Texas

Inner and outer tanks are welded, assembled and fitted at our plant. Ask about a leak detector for the space between the walls.

Talk to a tank specialist

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