Parker ZoomLock MAX Copper Reducer 1/2 x 3/8 In. Breadcrumb Home / Products / Parts / Fittings / Copper Fittings / Copper ZoomLock Fittings / Copper ZoomLock Reducers Loading... Mfg Part #: 870801 Brand: ZoomLock Max Connection Size (In.): 1/2 x 3/8 Fitting Type: Reducing Coupling Industry Number: MZK-R86-HNBR Material: Copper Quantity per Package: 2 Size (In.): 1/2 x 3/8