Concrete Pipe Connections

Concrete Manhole Adapters

Improve grouted connections between plastic or cast iron pipe and concrete manholes or similar structures.

Fernco Concrete Manhole Adapter

A Better Interface Between Pipe and Concrete

Designed for grouted pipe penetrations where concrete may not adhere directly to the connecting pipe.

Fernco Concrete Manhole Adapters provide an interface between plastic or cast iron pipe and the grout surrounding a concrete structure penetration.

Their flexible construction permits lateral pipe movement without destroying seal integrity, helping the connection accommodate movement commonly encountered in underground piping systems.

Built for Grouted Pipe Penetrations

A practical solution for improving connections where plastic or cast iron pipe enters a concrete manhole or similar structure.

1

Improves Grouted Connections

Helps improve the connection where pipe passes through the wall of a concrete manhole or similar structure.

2

Accommodates Pipe Movement

Flexible construction permits lateral pipe movement without destroying seal integrity.

3

Plastic and Cast Iron Compatible

Designed for plastic and cast iron pipe connections to concrete manholes and similar structures.

Where Concrete Will Not Bond Directly

Concrete Manhole Adapters are particularly useful with smooth plastic pipe, where concrete or grout may not adhere directly to the pipe surface.

Concrete manholes and similar structures
Sanitary sewer and wastewater structures
Stormwater structure pipe penetrations
Grouted plastic or cast iron pipe connections

Find Your Concrete Manhole Adapter

Part Number Adapter ID Pipe OD Range
4CMA 4.10 in. 4.20 in. – 4.50 in.
6CMA 6.10 in. 6.20 in. – 6.70 in.
8CMA 7.90 in. 8.20 in. – 8.70 in.
10CMA 9.90 in. 10.20 in. – 10.70 in.
12CMA 11.70 in. 12.50 in. – 12.80 in.
No matching adapter sizes were found.

Product Specifications

Flexible, corrosion-resistant construction for concrete structure pipe penetrations.

Material

Manufactured from flexible elastomeric PVC.

Environmental Resistance

Corrosion-proof and unaffected by acids or alkalis.

Material Standard

Material complies to ASTM D 5926.

Important Application Information

Concrete Manhole Adapters are subject to conditions beyond the manufacturer’s control. High groundwater tables, grout quality, workmanship and other field conditions can affect sealing performance. Discretion must be used during product selection and installation. Fernco does not warrant this product as a positive water seal.

Need Help Selecting the Right Adapter?

Contact Fernco for help identifying the appropriate Concrete Manhole Adapter for your pipe and application.

Contact Fernco