Watts 0666147 - Quick Connect 3510B-1412
1/4 IN OD x 7/16 IN UNS
Free heavy gauge 6" shower arm + Flange ($29 value)
sku: WATTS-0510187
sku: WATTS-0666123
sku: WATTS-0240220
sku: WATTS-0666148
sku: WATTS-17103060