Do it Best 1/2 in. Nom Copper x 3/8 in. OD Union

Straight connector. 1/2 nominal 5/8 O.D. copper compression to 3/8 O.D. tube.
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Supply Giant CCCU0038-NL 3/8 Nominal Size Lead Free Copper Straight Union with Sweat Sockets for Use with 1/2 OD Copper Pipe

Compliant with Low-Lead Legislation Act S3874 1-piece body construction for strength and durability 1/4-turn valve operation means only a quarter turn

BrassCraft G2CR19X C1 1/2 in. NOM Comp Inlet x 3/8 in. OD Compression Outlet Chrome Plated Brass 1/4 Turn Angle Valve

Ice Maker Water Line Brass Tube Fitting, 3/8 Male x 1/4 Compression - (2 Pack)

LTWFITTING 1/2-Inch OD x 3/8-Inch OD Compression Reducing Union,Brass Compression Fitting(Pack of 25) - Compression Fitting Ferrules

62X10 by Danfoss, Compression Fitting, Union, 5/8 Tube OD

BrassCraft 3/8-in x 1/2-in Compression Adapter Fitting in the Brass Fittings department at

LTWFITTING 1/8 in. O.D. Comp x 1/8 in. MIP Brass Compression Adapter Fitting (5-Pack) HF682205 - The Home Depot

Complete Toilet Set Valve 1/2 in. NOM Inlet x 3/8 in. OD Compression Outlet Angle Shut Off + Escutcheon Plate + 12 Long Stainless Steel Braided Brass Nut Water Supply Line

1/2 FIP X 3/8 COMP LF ANG BALL STOP LF - 76690 - Best Plumbing Specialties

Brass compression unions join pipes of similar or different sizing. They are used for low to medium pressure applications. Brass is durable, lead free

1/2 in. OD Compression Brass Coupling Fitting

Do it Best, 5/8 OD(1/2 Nom. Copper)Inlet, 3/8 OD Outlet, Straight Conn.426113

Approximate Length (Nut Screwed Down Hand Tight): 1.5 Vibration Resistance: Fair Temperature Range: -65°F to 250°F Use With: Brass, Bronze, Copper,

1/2 OD x 3/8 Male NPT Connector Brass Compression Fitting for 1/2 OD Tube

3/8OD X 3/8MPT Brass Compression X Male Pipe Thread Straight Connector — COPPERTUBINGSALES

5/8 OD Compression (1/2 Copper) x 1/2 PEX Brass Adapter (Lead Free)