Morrison Bros. 1 1/2 in. 354 Series Slip On Updraft Vent

Morrison Bros.
1 1/2 in.
0.75 LBS
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Atmospheric updraft vents are installed on the top of storage tank vent pipes on underground and aboveground fuel storage tanks.

NOTE: Open vents will allow unrestricted evaporation of product.


  • Directs vapor outward and upward in accordance with NFPA 30
  • Protects the vent line from debris and insects
  • Water resistant rain cap sheds water away from the vent line
  • Slip on design with set screws for easy installation
  • Internal drain channels water penetration out through weep hole
  • CARB 89-12 Approved (1 1/2" and 2" models)

Construction Details:

  • Body and cap: Aluminum die cast
  • Screens: 40 mesh brass

Installation Instructions

Installation Instructions (PDF Download)