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Glasteel II Underground Storage Tanks



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When it comes to the safe and secure underground storage of liquids, Northern Steel’s Glasteel Series exceeds all ULC and UL testing criteria.

The tank consists of a strong steel primary tank enclosed within a FRP Fibreglass Reinforced Plastic) secondary containment jacket. A Fibre Interstitial Layer provides added protection and safety.

NSI’s GLASTEEL II is the most cost effective underground tank installation solution.

Broad compatibility with all fuels, including gasoline, jet fuel, diesel fuel, ethanol, methanol, M-85, and E-85.

Glasteel-II Cutaway Diagram

NSI’s underground storage tanks offer multiple compartment configurations, custom-made to your optimum requirements. Cost-effective product storage with state-of-the-art safety features.

We know that protecting the environment is, and will continue to be, one of the hottest topics our industry faces in the coming decades. That’s why Northern Steel’s GLASTEEL II is the finest secondary tank available on the market today.

Glasteel-II Sumps Diagram

The NSI Glasteel II tank is so well engineered and built, it’s a shame to install it underground!

GLASTEEL II Features

Optional Features


Capacity (litres) Tank Model No. Tank Dia. (inches) Shell Length (inches) Weight (pounds)
5,000 HGS-5.5-5 65.00 97.50 1,565
7,500 HGS-5.5-7.5 65.00 145.00 2,050
10,000 HGS-5.5-10 65.00 183.00 2,800
15,000 HGS-7.5-15 88.50 160.50 3,900
20,000 HGS-7.5-20 88.50 208.50 4,850
25,000 HGS-7.5-25 88.50 256.50 5,680
30,000 HGS-7.5-30 88.50 304.50 7,675
35,000 HGS-7.5-35 88.50 352.50 8,700
40,000 HGS-8.3-40 98.50 328.50 9,300
45,000 HGS-8.4-45 98.50 364.50 11,400
50,000 HGS-8.3-50 98.50 412.50 12,700
50,000 HGS-10-50 118.13 280.50 11,000
65,000 HGS-10-65 118.13 364.50 14,425
75,000 HGS-10-75 118.13 424.50 18,000
90,000 HGS-10-90 118.13 508.50 21,000
100,000 HGS-10-100 118.13 556.50 26,900

Typical Installation for a Glasteel-II
Tank and NSI Anchor Package

Glasteel 2 Install Diagram

30 Year Comprehensive Warranty

Northern Steel provides a comprehensive, limited warranty on our tanks.
Customer Satisfaction is our guarantee.