Double Wall Vertical Tanks: STI F921® (meets UL-142)

Standard sizes ranging from 5,700g to 16,900g

Our Double wall vertical tanks are manufactured with a double-wall steel design including built-in, testable, interstitial monitoring capability and impermeable secondary containment.

Our tank designs meet or exceeds all UL 142 standards (bears STI F921® & SwRI labels) for installation in accordance with a variety of installation codes, including NFPA 30, NFPA 30A, NFPA 31, NFPA 37, NFPA 1 and the International Fire Code.

Double Wall Vertical Tank: STI F921
Tank CapacityTank Diameter / LengthPump SizeDrawing (PDF)
5,700g11’ x 8’ 0.75 HP1005-0001
6,400g11’ x 9’0.75 HP1005-0002
8,500g11’ x 12’0.75 HP1005-0003
10,000g12’ x 12’0.75 HP1005-0004
12,600g12’ x 15’0.75 HP1005-0005
10,000g12’ x 12’1.5 HP1005-0006
12,600g12’ x 15’1.5 HP1005-0007
14,900g13’ x 15’1.5 HP1005-0008
16,900g12’ x 20’2.0 HP1005-0011