Gemini² Dual Containment® Tanks

Gemini² Dual Containment® Tanks have the same great features and benefits as cylindrical Gemini plastic tanks but have a larger capacity per footprint. These square tanks have 22% more capacity than cylindrical tanks of the same size. All tanks meet or exceed secondary containment regulations set under EPA 49CFR. These tanks are designed with a pump mounting surface, female threaded connections, and twist lid inspection port. The integral mouse door, molded directly into most Gemini models, is a recessed mouse door that allows for the inexpensive installation of an optional dual wall bulkhead fitting for flooded suction and bottom fill applications (fittings sold separately). The ProChem® Tank Stacker™, sold separately, is designed for tank installations where space is limited and can hold 10 and 20 gallon Gemini²® tanks. Tanks are also available by special order in heavy duty 1.9 specific gravity or XLPE 1.5 or 1.9 specific gravity; contact us for a quote.

  • Molded from linear polyethylene
  • 8" vented twist lid
  • 1/4" interstitial fitting for detecting leaks in the secondary tank
  • Exceeds EPA requirements for dual containment tanks
  • Small footprint holds maximum capacity in a small area
  • Specific gravity rating: 1.5
  • Maximum temperature: 130°F
  • NSF/ANSI/CAN 61 certified
  • Dimensions are approximate
  • Level gauges sold separately
Stock Description Catalog Pg. Price
Gemini² 10 Gallon Blue Square Dual Containment Tank - 14" L x 14" W x 22" Hgt.
Item 3928
349.45/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
349.45/Each
Gemini² 10 Gallon Natural Square Dual Containment Tank - 14" L x 14" W x 22" Hgt.
Item 3929
349.45/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
349.45/Each
Gemini² 20 Gallon Blue Square Dual Containment Tank - 18" L x 18" W x 24" Hgt.
Item 3913
480.64/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
480.64/Each
Gemini² 20 Gallon Natural Square Dual Containment Tank - 18" L x 18" W x 24" Hgt.
Item 3914
480.64/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
480.64/Each
Gemini² 40 Gallon Blue Square Dual Containment Tank - 20" L x 20" W x 37.25" Hgt.
Item 3930
725.36/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
725.36/Each
Gemini² 40 Gallon Natural Square Dual Containment Tank - 20" L x 20" W x 37.25" Hgt.
Item 3931
725.36/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
725.36/Each
Gemini² 70 Gallon Blue Square Dual Containment Tank - 24" L x 24" W x 41" Hgt.
Item 3932
1034.11/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
1034.11/Each
Gemini² 70 Gallon Natural Square Dual Containment Tank - 24" L x 24" W x 41" Hgt.
Item 3933
1034.11/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
1034.11/Each
Gemini² 120 Gallon Blue Square Dual Containment Tank - 32" L x 32" W x 50" Hgt.
Item 5475
1814.32/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
1814.32/Each
Gemini² 120 Gallon Natural Square Dual Containment Tank - 32" L x 32" W x 50" Hgt.
Item 5476
1814.32/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
1814.32/Each
Level Gauge for 10 Gallon Gemini2 - Stainless Steel & PE
Item 3955
155.21/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
155.21/Each
Level Gauge for 20 Gallon Gemini2 - Stainless Steel & PE
Item 3956
155.21/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
155.21/Each
Level Gauge for 40 Gallon Gemini2 - Stainless Steel & PE
Item 3957
155.21/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
155.21/Each
Level Gauge for 70 Gallon Gemini2 - Stainless Steel & PE
Item 3958
155.21/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
155.21/Each
Level Gauge for 120 Gallon Gemini2 - Stainless Steel & PE
Item 3987
155.21/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
155.21/Each
Level Gauge for 10 Gallon Gemini2 - PE
Item 3959
584.38/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
584.38/Each
Level Gauge for 20 Gallon Gemini2 - PE
Item 3960
584.38/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
584.38/Each
Level Gauge for 40 Gallon Gemini2 - PE
Item 3961
584.38/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
584.38/Each
Level Gauge for 70 Gallon Gemini2 - PE
Item 3962
584.38/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
584.38/Each
Level Gauge for 120 Gallon Gemini2 - PE
Item 3988
584.38/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-305
584.38/Each
ProChem® Tank Stacker™ for 10 to 20 Gallon Gemini® & Gemini²® Tanks & 2.1 Gemini® Pump Containment Enclosures
Item 18827
929.41/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-505
929.41/Each