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The GREEN LEAF RB 12-14 is a threaded nylon reducer bushing designed to transition pipe connections from 1/2-inch male iron pipe thread (MIPT) to 1/4-inch female iron pipe thread (FIPT). Constructed from white nylon plastic, this bushing offers lightweight corrosion resistance suitable for low-pressure fluid and gas distribution applications. It carries NSF 61 and NSF 372 certifications, making it appropriate for use in potable water systems where lead-free compliance is required. Plumbers and pipefitters install this fitting when downsizing threaded connections within supply lines, distribution manifolds, or equipment ports.
The RB 12-14 is suited for residential and light commercial plumbing installations where a 1/2-inch MIPT port must be reduced to accept a 1/4-inch FIPT connection. Typical applications include water treatment equipment, filtration system headers, ice maker supply lines, and similar low-pressure fluid distribution setups. The nylon construction makes it a practical choice in environments where metal fittings would be prone to corrosion or where a non-metallic, lead-free fitting is specified by code or system design.
Designed as an OEM-style threaded replacement reducer bushing for plumbing and fluid distribution systems requiring a 1/2-inch MIPT to 1/4-inch FIPT nylon transition fitting.
Installation is performed by licensed plumbers or qualified pipefitters. Shut off the water supply and relieve system pressure before removing or installing any threaded fitting. Apply thread sealant tape or pipe dope to the male threads in accordance with local plumbing code requirements before hand-tightening and completing with a wrench. Do not overtighten nylon fittings, as excessive torque can crack the body or strip threads.
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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