1607 Asphalter Manhole with 6" Collar

Durable, full opening access manhole ideal for non-pressure applications.  Strong back channel hinge design provides secure closure.  Various collar heights available.  Standard gasket material is Hi-Temp (200 degree F operating temperature), with other gasket materials available.

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Recommended Accessories:

Mushroom Type Air Vent (401)
Triplex Vent (37 & 37X)