Earl's Hardline Adapter 00117ERL. Hardline Expander - Stainless Steel - 3/8"-24 Inverted Flare Male for 3/16" Tubing to 7/16"-24 Inverted Flare Female for 1/4" Tubing. Stainless Steel Construction. Available for Any Hardline Plumbing Situation And Many Custom Applications.
