g
N ote: When specifying/ordering grates, refer to “Choosing the Proper Inlet Grate” on pages 117-118. For a complete listing of FREE OPEN AREAS and WEIR PERIMETERS of all NEENAH grates, refer to pages 306-311.
R-3275 Combination Inlet Frame, Grate, Curb Box Heavy Duty
COMBINATION INLETS
WEIR
3 2
SQ. PERIMETER CATALOG GRATE FT. LINEAL NUMBER TYPE OPEN FEET R-3275 A 1.0 4.6
Available with barred curb box.
R-3277-A Combination Inlet Frame, Grate, Curb Box Heavy Duty
WEIR
SQ. PERIMETER CATALOG GRATE FT. LINEAL
Standard Grate (shown): Type C Also available with grate Type R or Type L.
NUMBER TYPE OPEN FEET R-3277-A C 1.2 4.6 R-3277-A R 1.2 4.6 R-3277-A L 0.7 4.6
R-3278-A Combination Inlet Frame, Grate, Curb Box Heavy Duty
WEIR
SQ. PERIMETER CATALOG GRATE FT. LINEAL NUMBER TYPE OPEN FEET Standard Grate (shown): Type C R-3278-A C 1.2 4.6 Also available with grate Type R-diagonal, R-3278-AR R 1.2 4.6
Available with open curb box. Frame available with 4-sided flange support. 2-1/4” adjusting ring available, see R-1979 series.
order R-3278-AR.
Available with Type L grate, see R-3278-AL.
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