Product Range

Products

Ductile iron and composite covers, grates, and meter boxes — AASHTO load rated, with SPPWC plan equivalence on request.

Ductile Iron Manhole Covers & Frames

3 products

ASTM A536 / AASHTO H-20 traffic-rated castings

Round and square covers and frames in ASTM A536 ductile iron — traffic-rated, anti-settlement, and precast-compatible.

12" to 40" clear opening A15 / B125 to E600 · H-15 / H-20 / HS-20

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Composite (BMC/SMC) Manhole Covers

3 products

Anti-theft, corrosion-proof, 60% lighter than ductile iron

Fiberglass BMC/SMC covers — theft-proof, corrosion-proof, signal-transparent, and 60% lighter than ductile iron.

8" to 40" round · 8"×21" to 41"×63" square B125 / C250 / D400 · H-15 to H-20

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Drainage Grates & Trench Covers

3 products

Catch basin, curb inlet, and trench drain grates

Galvanized iron and composite grates for catch basins, curb inlets, and trench drains — bicycle-safe slot options.

8"×16" to 24"×30" (custom sizes available) B125 to D400 · H-20

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Water Meter Boxes & Utility Enclosures

2 products

AMR-ready composite enclosures for water utilities

Composite meter boxes for water utilities — signal-transparent for AMR reads and corrosion-proof outdoors.

Multiple residential and commercial configurations A15 / B125 (pedestrian and light vehicle)

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All Products

11 products in catalog

Ductile Iron Manhole Covers & Frames

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LZB-DI-R24-D400

24" Round Ductile Iron Manhole Cover & Frame

AASHTO H-20 traffic rated, anti-settlement design

AASHTO H-20 / D400 (40,000 lb proof load) 24" (610 mm)

LZB-DI-S20-D400

20"×20" Square Ductile Iron Cover & Frame

Utility vault and valve box square access

D400 / AASHTO H-20 20"×20" (500×500 mm)

LZB-DI-SQR-28x32-D400

28"×32" Square Frame, Round Opening — Ductile Iron

Precast-friendly square frame with round access lid

D400 / AASHTO H-20 24" round opening (610 mm) within 28"×32" square frame

Composite (BMC/SMC) Manhole Covers

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LZB-SMC-R24-D400

24" Composite Manhole Cover & Frame

Anti-theft BMC/SMC — zero scrap value, 60% lighter

AASHTO H-15 to H-20 · C250 / D400 (size-dependent) 24" (610 mm)

LZB-SMC-R28x32-C250

28"×32" Composite Round Cover with Frame

Mid-size composite cover for telecom and electrical vaults

C250 (light-traffic / sidewalk) — D400 available 28" round (710 mm)

LZB-SMC-S24x40-C250

24"×40" Composite Square Cover

Elongated composite cover for cable trench and pull boxes

C250 (light traffic) — heavier ratings on request 24"×40" (610×1015 mm)

Drainage Grates & Trench Covers

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LZB-DG-S24-D400

24"×24" Ductile Iron Drainage Grate & Frame

Hot-dip galvanized, bicycle-safe slot pattern

AASHTO H-20 (16,000 lb wheel load) · C250 to D400 ~22"×22" (560×560 mm) within 24"×24" frame

LZB-DG-S18x30-D400

18"×30" Ductile Iron Grate Set

Elongated curb-inlet and gutter grate

AASHTO H-20 / D400 ~16"×28" within 18"×30" frame

LZB-CG-S13x20-B125

13"×20" Composite Drainage Grate

Anti-theft composite grate for landscape and pedestrian areas

B125 (pedestrian / light vehicle) ~11"×18" within 13"×20" frame

Water Meter Boxes & Utility Enclosures

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LZB-WMB-S12x20-B125

12"×20" Composite Water Meter Box

AMR-ready residential composite meter box

B125 (pedestrian and light vehicle, off-roadway) 12"×20" (300×500 mm)

LZB-WMB-S13x20-B125

13"×20" Composite Water Meter Box

Slightly oversized residential meter footprint

B125 (pedestrian and light vehicle) 13"×20" (330×500 mm)

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