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The Monitor PS Industrial Pitless Unit for submersible pumps forms a watertight extension of the well casing.

The first numeral in the order number indicates the bury depth, in feet. Bury depth on all units is measured from the center of the discharge line to ground level. The top of the pitless case extends 12” above ground level as is required by many codes. However, any length can be manufactured.
This numeral indicates the well casing size.
This numeral indicates the upper pitless case size.
The water sampler valve is a valve on the water sampler.