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The GREEN LEAF RM 38116 is a nylon plastic reducer nipple designed to transition between two different pipe sizes in threaded piping systems. It features male iron pipe thread (MIPT) connections on both ends, allowing it to connect two internally threaded fittings at different diameters. Made from white nylon, this reducer nipple is lightweight, corrosion-resistant, and suited for low-pressure plumbing, irrigation, and fluid transfer applications. The smaller end measures 3/8 inches and the larger end measures 11/16 inches. Plumbers, irrigation technicians, and maintenance professionals commonly install this fitting when reducing or stepping up between threaded lines.
This reducer nipple is used in residential and light commercial plumbing, drip irrigation, pool and spa equipment plumbing, and general fluid transfer systems where a threaded reduction is needed between two lines. The nylon construction makes it a practical choice in environments where metal corrosion is a concern or where weight savings matter. It installs in systems that accept MIPT connections on both the inlet and outlet sides.
Designed as an OEM-style replacement or new-installation fitting for threaded piping systems requiring a reducer nipple with MIPT x MIPT connections at 3/8 x 11/16 inch sizing.
This fitting is typically installed by licensed plumbers or irrigation technicians. Shut off the water supply and relieve system pressure before installation. Apply thread sealant tape or pipe dope to the male threads before threading into female-threaded fittings to ensure a leak-free seal. Hand-tighten first, then use an appropriate wrench to snug the fitting without overtightening, as nylon threads can crack under excessive force.
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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