500-Gallon (1890-L) Fiberglass Tanks (T5)

Orenco’s 500-gallon (1890-L) fiberglass tanks are designed for underground use as pump tanks in onsite residential and commercial wastewater collection and treatment systems, as well as for grease tanks and tanks for non-potable rainwater collection.

  • Durable, lightweight FRP construction
  • Injection-molded for part consistency and quality
  • 100% watertight — factory-tested before shipping
  • 623 gallons (2347 L) total volume available
  • Direct-fit for 12-24-inch (300-600-mm) Orenco access risers
  • Adapters available for 30-inch (750-mm) access risers
  • 2-inch (50-mm) inlet and outlet plumbing, standard
  • 4-inch (100-mm) inlet adapters available
  • 72-inch (1828-mm) maximum burial depth
  • IAPMO approved for grease tanks
  • Not approved for use with potable water


Sample Product Codes*

  • T500-24 — 500-gallon (1890-L) fiberglass tank, 24-inch (600-mm) access riser opening
  • T500-24-30 — 500-gallon (1890-L) fiberglass tank, nominal 24-inch (600-mm) access riser opening, 30-inch (750-mm) riser adapter installed

* For the full range of available product options, contact your local Orenco Distributor or Orenco.

Technical Data Sheet

Product Sheet

500-Gallon (1890-L) Fiberglass Tank