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Transition Sump (2 Piece-Sump / Polyethylene)

Model PTS-4021 Transition Sump (2 Piece - Polyethylene Sump/Polyethylene Top)

  • Non-corroding, polyethylene sump container
  • Weatherproof lockable cover
  • Exterior anchoring system

AST Application: Provides secondary containment and accessibility to the fittings that connect the underground supply piping to the rigid supply piping that leads from an above ground storage tank.

Vent Stack Application: Transition sump is used for containment and accessibility to the fittings at the vent stack, located where the underground vent piping connects to the rigid vent stack piping.


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