Closed Bottom Double Wall

Closed Bottom Double Wall

Installation Guide - Coming Soon

Spec Sheets

The octagon-shaped Closed Bottom Double Wall Tank Sump is ideally configured for piping laid out in 45- and 90-degree angles. It comes standard with a snap-lock lid with imbedded O-ring seal to make it watertight. There is a v-groove pour channel to join the two-piece containment sump eliminating the need for lamination. The pour channel allows communication between the base and the top-hat. The sump is VPH compliant and the top-hat ships under 20” HG vacuum to ensure integrity.​

  • Quality fiberglass construction
  • Split configuration is height adjustable
  • Fuel resistant resin doesn’t require gel coat for fuel resistance
  • Doublewall is suitable for constant monitoring – triennial testing exempt
  • 30-year corrosion warranty
  • UL 2447 Listed
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