Product Specifications

Cast Iron Soil Pipe Institute (CISPI) Standard Specifications

CISPI 301-21

Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste and Vent Piping Applications.


CISPI 310-20

Couplings for use in connection with Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications.


American Society for Testing and Materials (ASTM) Standard Specifications

ASTM A 74-20

Standard Specifications for Hub and Spigot Cast Iron Soil Pipe and Fittings.


ASTM A 888-20

Standard Specifications for Hubless Cast Iron Soil Pipe and Fittings.


ASTM C 564-20a

Standard Specifications for Rubber Gaskets for Cast Iron Soil Pipe and Fittings.

For More Information

The CISPI Cast Iron Soil Pipe & Fitting Handbook offers detailed information on the manufacture and use of cast iron.

Download the Handbook

For More Information

The CISPI Cast Iron Soil Pipe & Fitting Handbook offers detailed information on the manufacture and use of cast iron.

Download the Handbook