All parts are brass except the 50710 is galvanized
Larger Side will be male Thread, Smaller size will be Female Thread
1 1/2″ REDUCTION UNION 1 1/2″ X 1″
K35100M – 1″ NPT BALL VALVE, BRASS, MALE X FEMALE Part #: K35100M
VALVE – MALE X FEMALE THREAD Rapidair Brass Male x female Brass Ball valve, Full Port.