b'STORMWATERCATALOGManhole Ring & Cover ITEM # 2207/220831 7/8RIBBED31 7/8 1 1/2PLATEN40 3/432 3/164 1/2THROAT30 CURB OPENING CURB32 3/8 STREET INLET4.5" TOP FLANGE / REVERSIBLE / INVERTED40 3/432 3/166 30 TYPICAL APPLICATION6" TOP FLANGE / INVERTEDDESCRIPTION : 23 TOP FLANGE RING & COVERMATERIAL: CAST IRON, ASTM A48, CLASS 30B/ Class 35B. 32 CAST IN RING & COVERRC2207 RC220719-32234 INFO@PARKUSA.COM|888-611-7275|WWW.PARKUSA.COM'