B-600-D-AB Commercial Walkover

DoubleWall Monitored Transition Containment Sump

The B-600-D-AB Commercial Transition Sump is ideal for piping fuel to generators from above or below ground. It consists of a structural galvanized steel frame sealed to a twin-wall monitored fiberglass sump. Read more

Available in three standard sizes, you can customize the size until it meets your needs. The walls have a compressive strength of over 1300 PSI and ship under a continuous vacuum test at 20”Hg or greater. A combination pressure/vacuum gauge is factory-installed. Each sump also includes monitoring fluid. It features a flush-mounted diamond-plate cover, concrete anchoring flanges, interior c-channel for mounting any type of hardware and options for AST compression fittings for pass-through risers from 3/4″ up to 6″ diameter.

DoubleWall Fiberglass (Monitored)
Shipped under a continuous vacuum test of 20+ Hg
Piping Transition Sump
Walkover design for pedestrians
UST to AST transition
Customize the sump's size
Firewall - Protects internal components from external fires
Electrical Offset Design
/ Double
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  • Made in the USA (i)
  • FRP Construction / Built like a Tank (i)
  • Clear walls - True DoubleWall AB-2481 compliant performance (i)
  • Extra-large flat-walls to fit more entry fittings
  • Interstice continuously tested from factory to destination (i)
  • Same sump allows both Hydrostatic and Vacuum monitoring
  • Interstitial fluid included (i)
  • Walkover-style bolt-down diamond plate cover (i)
  • Factory-installed AST compression fittings
  • Electrical Offset (EO) option (i)
  • Factory-tested (i)
  • Kitted: Includes installation accessories (i)
  • Third Party Approved
  • UL Listed
  • FDEP Approved: EQ# 615
  • 30 Year Warranty (i)