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FIG 418TM

Limited Access Manhole - Tank Monitoring

Round manholes with bolted and gasketed cover. Used for access ports in driveways where limited access and/or water-resistant conditions are required.

Product Features

Standard Features

Features “Tank Monitor” text for UST leak detection

Bolt down and gasket style

Meets H-20 load requirements


Construction Details

  • Bolts are standard hex head stainless steel, except for the 418 18"x12” and the 18"x18” which uses a flat head screw
  • Gaskets are Buna-N

Product Ordering Instructions

Fig Suffix Size Description Weight
418TM 1100 AM 18” x 12” Tank Monitoring Manhole 72
418TM 1200 AM 18” x 18” Tank Monitoring Manhole 78