Master Plumber Female Reducing Adapter - Compression Fitting

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Tigre USA Pipe Reducing Adapter, 1/2 x .75 In. MIP

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Brass Push Male Tube and Pipe Adapter

13033 Universal 1/2 Transmission Cooler Line to 3/8 Hose Barb Compression Fitting - JEGS

Abbott Rubber Master Plumber PVC Tubing, Clear, 5/8 ID x 7/8 In. OD x 100 Ft.

HFS(R) 1/4 Female SAE to 3/8 Male JIC Reducer Adapter Stainless Steel 304

Iron pipe fitting - Reducer bushing - Master Plumber®

Builders Compression Coupler Reducer CXMI (22 x 15mm) Builders