1/4 In. Male NPT X 3/8 In. MNPT Coupler Kit for Most Gas and Electric Pressure W by | Jul 21, 2026Male NPT X 3/8 In. The RYOBI ¼” Male NPT x 3/8″ MNPT Coupler Kit reduces a 3/8″ M NPT coupler to a ¼” M NPT coupler. Converts 3/8” NPT coupler to a ¼” NPT Coupler. For Use with NPT Threaded Accessories.
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