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The GREEN LEAF RB 38-14 is a nylon plastic reducer bushing designed to transition pipe threads from 3/8-inch male iron pipe thread (MIPT) to 1/4-inch female iron pipe thread (FIPT). Made from white nylon, this bushing provides a lightweight, corrosion-resistant solution for reducing pipe size in low-pressure plumbing and fluid-handling systems. It carries NSF 61 and NSF 372 certifications, making it suitable for potable water applications. Plumbers and irrigation technicians commonly install this fitting when adapting supply lines, manifold ports, or distribution headers to smaller downstream connections.
This reducer bushing is suited for residential and light commercial plumbing, irrigation systems, water filtration assemblies, and other fluid-handling installations where a threaded size reduction from 3/8 inch to 1/4 inch is required. The MIPT x FIPT end configuration allows it to thread directly into a female-threaded port while accepting a male-threaded fitting on the smaller end. Its nylon construction is well-suited for clean-water service lines, RO system hookups, and low-pressure distribution applications.
Designed as an OEM-style replacement or add-on fitting for threaded plumbing systems requiring a 3/8-inch to 1/4-inch MIPT x FIPT reducer in nylon construction.
Installation should be performed by a licensed plumber or qualified tradesperson in accordance with applicable local plumbing codes. Shut off the water supply and depressurize the line before removing or installing any threaded fittings. Apply thread sealant tape or pipe dope rated for use with nylon fittings to the male threads before assembly. Hand-tighten first, then snug with a wrench — avoid overtightening, as nylon threads can crack under excessive torque.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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