1.5" NYFD Female Hose x 3/4" Garden Hose Male Hydrant Adapter – FireHoseSupply.com
5" NPT Male Pipe x 5" NST (NH) Male Hose Adapter – FireHoseSupply.com
Fiskars 807054-1001 Hose Connector Male 3/4 Inch National Hose Thread By 1/2 Inch National Pipe Thread Female: Hose Connectors & Adapters (034411001097-1)
Double Female Swivel 1/2" NPT x 3/4" NH - North Ridge Fire Equipment