Standard Merchant Steel : Hose Barb x MPT or Combination Nipple or King Nipple

3/4″ Steel Hose Barb x 3/4″ MPT

1″ Steel Hose Barb x 1″ MPT

2″ Steel Hose Barb x 2″ MPT

2-1/2″ Steel Hose Barb x 2-1/2″ MPT