Proline Series 5/16-in x 5/16-in Compression Coupling Union Fitting in the Brass Fittings department at

SharkBite 5/16-in OD x 1/4-in OD Push-to-Connect Reducing Coupling

Brass Fittings & Accessories

How To Install a Compression Fitting on Copper or Plastic Tubing

Proline Series 5/16-in x 5/16-in Compression Coupling Union

BrassCraft 1/4-in x 1/4-in Compression Reducing Union Coupling

Brass Fittings - Fittings - The Home Depot

Watts 5/16-in x 1/4-in Compression x Mip Adapter Compression

Brass Compression Fittings - Reducing Unions - 3/8 x 5/16

LTWFITTING 3/8-Inch OD x 1/4-Inch OD Compression Reducing Union

How To Install a Compression Fitting on Copper or Plastic Tubing

Proline Series 1/2-in Threaded Nut Fitting in the Brass Fittings