2 types one Center Cone and one Offset Cone, both with 3 various sizes and heights to accommodate all applications

Used to adjust the height of the base and cone sections to grade

Sanitary Bottom Bases, Large Sanitary Bottom Bases, and Round Bottom Bases

5 standard inlet channels with a 2% flow molded-in will accommodate from 4″ up to 12″ pipe

Accommodates 6″, 8″, and 12″ pipe

Used to provide the seal between the manhole components and does not allow infiltration or exfiltration

28” x 3” Plastic Manhole Cover

Large Manhole Configuration

RHINO MANHOLES by Fibertech provide the highest level of reliability for applications varying from sewer, wastewater, landfill leachate, storm water collection systems to below grade utility inspection chambers.

Field tested under a variety of conditions

RHINO MANHOLES have been field tested under a variety of conditions to meet exacting design and quality standards for long life and corrosion resistance installation. They have been proven to outlast concrete, steel, and fiberglass manholes.

Using 100% virgin polyethylene plastic, our industrial strength plastic manhole unit offers a wide range of chemical resistance to acids and many organic compounds. Because of this resistance, attack from hydrogen sulfide, sulfuric acid and other aggressive chemicals does not occur.


• Long/Short Center Cone
• Long/Short Offset Cone
• 24”/36” Tall Riser
• Round Bottom Base
• Sanitary Bottom Base
• 8” and 12” Base Extensions
• 6”/8”/10”/12” Dia. Spout
• 4”-12” Dia. Inlets
• Plastic/Concrete Lid


• High Density Polyethylene
• Molded-In Step System
• Gaskets Seals
• Base, Riser, Cone, Lid
• Flow Channels/Inlets
• H-20 Load Rating
• 0.5 inch Wall Thickness
• 28” Dia. Lid


• Durable
• Light Weight
• Water Tight Gasket Seal
• No Infiltration/Exfiltration
• Easy Install
• Easily Modified
• Corrosion & H2S Resistant
• 100% Recyclable
• Flotation Resistant
• Variety of Option & Configurations

Let Fibertech Be Your Partner for NEW and REPLACEMENT Projects.

Questions or Ready to get started? Call us today at 800-304-4600 or Contact Us.

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