KIMBALL MIDWEST 1/2-3/8 REDUCING COUPLING LF3300X8X6

"Nibco" 600R3412 Reducer Coupling Copper X Copper - 3/4"X1/2" - Pkg Qty 25

OTC Spring Lock Coupling Quick Disconnect Tool - 3/8", 1/2", 5/8", 3/4

"Nibco" 600R11234 Reducer Coupling Copper X Copper - 1-1/2"X3/4"

FLAIR-IT 421554 FLAIR IT COUPLING 1/2 IN PEX X 3/4 IN PEX

REDUCING COUPLING 3/4"D

Mueller 291480 3/4 x 1/2 Black Pipe Belled Reducing Coupling

Mueller 285560 3/4 x 1/2 Galvanized Pipe Belled Reducing Coupling