Monarch Products manufactures 4', 5', 6', & 8' diameter precast concrete manholes.

All manholes are designed and manufactured to meet or exceed ASTM standards.

Many options are available to our customers, including:

• Flexible watertight pipe to manhole connectors
• Bituminous and epoxy coatings
• SNOUT^® oil-water-debris seperators
• Lined Manholes
1. High Density Polyethylene (HDPE)
2. Fiberglass
3. Polyvinyl Chloride (PVC)

Our complete product catalogs and brochures are available upon request.  We also offer CAD drawings of our products.

Manholes	PDF
PRECAST CONCRETE MANHOLE 4 FT. DIAMETER - SANITARY USE
PRECAST CONCRETE MANHOLE  BASE 4 FT. DIAMETER W/ FLOW CHANNELS
PRECAST CONCRETE MANHOLE 4 FT. DIAMETER W/ FLAT LID
PRECAST CONCRETE MANHOLE 5 FT. DIAMETER
PRECAST CONCRETE MANHOLE 5 FT. DIAMETER W/ ADAPTOR SLAB
PRECAST CONCRETE MANHOLE 6 FT. DIAMETER
PRECAST CONCRETE MANHOLE 8 FT. DIAMETER
MANHOLE GRADE ADJUSTING RINGS
MANHOLE RISER RINGS
CAST IRON AND STEEL PRODUCTS