Gauge Stick Port Cap & Adaptor


The 305GSP provides an access port for manual gauging of aboveground storage tanks.

Standard Features

Lockable with a padlock

Straight threads with gasket secure drop tubes into the riser pipe

 Clearly labeled "Gauge Stick Port" to ensure proper access

 Vapor and liquid tight

 Use with Morrison model 419 drop tube


Construction Details

  • Adaptor: Brass
  • Cap: Aluminum
  • Gasket: Buna-N
Fig Suffix Size Description Weight
305GSP 0000 AK 2" Gauge Stick Cap & Adaptor 2.5
305GSP 2000AKEVR 2" Gauge Stick Port Cap & Adaptor w/ID Tag, CARB EVR Approved 2.5


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CARB Certification

Morrison Bros. Co. has received approval from California’s Air Resource Board for a Phase 1 Enhanced Vapor Recovery System for Protected Aboveground Storage Tanks. Click here to get started on your CARB certification!

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