Charlotte Cast Iron 4 X 3" No-Hub Double Combination

ASTM 888: Specification for Hubless cast iron soil pipe and fittings for sanitary and storm drain, waste, and vent application 
Scope: This specification covers hubless cast iron pipe and fittings used in sanitary drain, waste, and vent (DWV), sewer, and storm drainage applications. This system is intended for use in nonpressure applications.

CISPI Standard 301: Specification for hubless cast iron soil pipe and fittings for sanitary and storm drain, waste, and vent piping applications 
Scope: The purpose of this standard is to establish standards covering material, dimensions, and tolerance for pipe and fittings for hubless cast iron sanitary and storm drain, sanitary waste, and vent piping applications.

Boston Heating Supply has one of the largest stocks of Charlotte Cast Iron in New England
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