Type M Inlets
Knockout catch basin with flat top unit
Stone & Company Type M Inlet is of tongue and groove design. One of our features is our Groove Base Slab which can be set in the hole on a sufficient base of aggregate material, allowing you to build the inlet to the
required height and back filling without moving parts of the inlet. The hole can be dug, the base installed, the desired height achieved, and hole back filled, all in a matter of hours.

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Type M Inlets come in a variety of sizes- 6", 1', 2' and 3' sections, tongue and groove or with top receive grate. Knockouts are in all 4
sides.
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