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The NDL INDUSTRIES W1315 is a copper reducing bushing designed to connect a 5/8-inch fitting end (FTG) to a 1/2-inch copper tube (C) in a sweat-soldered piping system. This type of fitting allows a technician to transition between two common copper tube sizes without cutting into the existing run or installing an additional union. Plumbers and HVAC technicians use reducing bushings like this when adapting branch lines, connecting equipment with different port sizes, or modifying existing copper distribution systems. The FTG x C configuration means the male end inserts directly into a fitting socket, while the female end accepts a standard copper tube for soldering.
This reducing bushing is suited for residential and light commercial plumbing and HVAC hydronic applications where 5/8-inch and 1/2-inch copper lines intersect. Typical installations include domestic water distribution, chilled water lines, and refrigerant piping where applicable. It is sold in a box quantity of 50 units, making it practical for contractors stocking fittings for multiple service calls or new construction rough-in work.
Designed as an OEM-style sweat fitting for use in standard copper piping systems utilizing 5/8-inch and 1/2-inch tube sizes with FTG x C connections.
Installation should be performed by a licensed plumber or HVAC technician following applicable local plumbing codes and ASTM standards for soldered copper joints. Shut off and drain the water or system fluid before cutting into any existing line. Clean both the fitting surfaces and tube ends with emery cloth and apply flux before soldering to ensure a leak-free joint. Do not overheat the fitting during soldering, as excessive heat can damage the copper or cause flux to burn off before the solder flows.
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