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        | a fitting designed to adapt one pipe or fitting to another portion of a piping system |  | 
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        | an enlarged end of a pipe or fitting that receives another pipe end or fitting; also called a hub or socket |  | 
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        | an offset made in tubing on a job site; also a manufactured offset fitting |  | 
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        | a compact reducing fitting that is inserted into a fitting hub |  | 
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        | a DVW fitting installed to clear obstructions from a drain or sewer |  | 
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        | a specially designed 90° fitting used as the last fitting of a drainage system serving a water closet; one side is 4" and the other is 3" |  | 
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        | abbreviated term meaning a combination of a DWV wye fitting and eighth bend (45°) fitting |  | 
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        | a sleeve that connects two equal-sized pipe ends to form a continuous pipe |  | 
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        | a pipe that receives discharge from a fixture(s) |  | 
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        | abbreviation for drainage waste and vent system |  | 
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        | a fitting used to create an offset; also called a bend |  | 
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        | a corrosion process caused by directly connecting dissimilar metals |  | 
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        | a fitting with internal threads that screws onto a male fitting |  | 
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        | an enlarged end of a pipe or fitting that receives another pipe end or fitting; also called a bell or socket |  | 
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        | a fitting with external threads that screws into a female fitting |  | 
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        | describes all change of direction fittings or the routing of a piping system other than being installed straight |  | 
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        | a DWV fitting having a water seal, which is installed at each fixture not having an integral trap to prevent sewer gasses from escaping into an occupied area |  | 
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        | a fitting used to connect two different pipe sizes together; this fitting is different from a bushing but accomplishes the goal of reducing a pipe size |  | 
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        | a four-way fitting that has limited use in a DWV system; has the same compact design as a sanitary tee fitting |  | 
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        | a compact three-way fitting that has a sanitary flow pattern and has limited use in a DWV system |  | 
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        | an enlarged end of a pipe or fitting that receives another pipe end or fitting; also called a bell or hub |  | 
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        | a vertical drain or vent pipe rising more than one story in height |  | 
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        | a type of offset fitting in which one end has the same outside diameter as a connecting pipe or fitting |  | 
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        | a fitting arrangement that creates an offset using two fittings |  | 
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        | a three-way fitting used to connect a branch pipe with a main portion of a piping system and is ordered based on the size of all three sides |  | 
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        | installed in a DWV system to complete a test and can also be installed to serve as a cleanout in a vertical DWV pipe |  | 
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        | a specialty fitting installed to connect a DWV stubout pipe to a p-trap, also called a desanco |  | 
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        | a three-piece fitting installed in a piping system to provide access without cutting the pipe and also used as a termination of the piping system to a piece of equipment |  | 
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        | a pipe dedicated to providing airflow, so that a drainage system can breathe |  | 
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        | another name for a toilet |  | 
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        | a three-way DWV fitting with the branch connection being 45° from the main portion of the fitting |  | 
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