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Marshall Excelsior LP Gas 1 3/4 in. Male Acme x 1 1/4 in. MNPT Steel Adapter - John M. Ellsworth Co. Inc.
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Dixon ME217 1-3/4" Male Acme x 1-1/4" MNPT LP Gas Adapter, 1.75" ID, Brass: Amazon.com: Tools & Home Improvement
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