Designers & Builders of Tank Trucks since 1948
  • 10 in. Round Manholes

    Steel and Stainless Steel Manholes with and without Working Vents.

    We are a Full Line Betts Dealer. Please Contact Us for Items Not Listed.

  • Betts Dome 16 in. Offset

    All 16" manhole assemblies include gasket, clamp ring and bolt, and working vent(s) unless otherwise noted.

    Order weld collars separately. We are a Full Line Betts Dealer. Please Contact Us for Items Not Listed.

  • Manhole 20 in. Offset PAF 406 Zinc

    All 20" manholes include gasket, clamp ring and bolt, and working vent(s) unless otherwise noted.

    Order weld collars separately.  We are a Full Line Betts Dealer. Please Contact Us for Items Not Listed.

  • 12 x 16 in. Oval Manholes

    Note: 12" x 16" manholes can no longer be used on NEW DOT tank vehicles (16" minimum diameter). You can replace or repair existing manholes. All 12" x 16" manholes include gasket, clamp ring and bolt, and working vent(s) unless otherwise noted.

    Order weld collars separately.  We are a Full Line Betts Dealer. Please Contact Us for Items Not Listed.

  • Tank Truck Manholes & Dome lids

    12"x16", 16" and 20" Collars in Steel, Aluminum and Stainless

  • Clamp Rings

    Clamp Rings, Bolts, Nuts and Washers

  • Fill Lid Assemblies

    10" Aluminum fill cover has spring cylinder assembly and buna gasket installed. No vents or plugs.

  • Gasket 10 in. Channel Fill Lid

    We stock gaskets in several materials and for other manufacturers. Please contact our parts department if you don't see what you need.

  • PPV-Vent

    We stock vents for Knapp manholes. Please contact our parts department for info.

  • Dome Emer. Drain Plug Assembly w/o Locknut

    Allows a place for emergency unloading of overturned tanks.

  • Dome Lid Wing Nut

    Latching hardware for Betts full opening manholes. We stock hardware for Knapp dry bulk lids. Please contact our parts department for more info.

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