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Morrison Bros. 418XA Series 12 in. x 12 in. Limited Access Manhole - Monitoring Well (MO418XA0400AM)

Meets H-20 load requirements Large clean-out surface around the bolts Locating tab for ease of b...
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$118.23
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  • Meets H-20 load requirements
  • Large clean-out surface around the bolts
  • Locating tab for ease of bolt alignment
  • "Monitoring Well" cast into cover
  • Easy to replace gaskets without tools or glue (7″, 9″, and 12″)
  • API 615 equilateral triangle cast into cover

Morrison Bros

Designed for tank filling applications where a tight fill connection is not required. Threaded bo...

Lightweight construction
Dual disc for easy opening and cushion closure
Right angle design
Drag ...

Durable metal-to-metal seats
Thermal expansion relief in 25 PSI
200 PSI cold non-shock pressure ...

Durable metal-to-metal seats
Thermal expansion relief in 50 PSI
200 PSI cold non-shock pressure ...