TITLE 77: PUBLIC HEALTHHome
PART 890 ILLINOIS PLUMBING CODE
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SECTION 890.380 INCREASERS AND REDUCERS
Section 890.380 Increasers and Reducers
Different Sizes. Where different sizes of pipes or pipes and fittings are to be connected, the approved proper size increasers, reducers or reducing fittings shall be used between the two sizes.