MHR 428-4 - Heavy duty manhole frame and cover. Gray iron meets or exceeds ASTM A48, Class 30B. Other grades of gray iron available upon request, Suitable for H-20 loading, Finish is uncoated. Provided with 1 cut-through pickhole unless otherwise requested.

Quantity [_____] Options include:
Lettering Set-up [ ]
Bolting:  2 Bolt [ ]  4 Bolt [ ]
Gasketing:  1/4" O-Ring [ ]  Flat Rubber [ ]
Locking:  Penthead S. S. Bolt [ ]