Stainless Steel Medium Shank Combination Nipple, 0.75 Inch ID Hose Barb To 3/4-14 Male NPT

It’s a 0.75 inch ID hose barb on one end, so it matches a 3/4 inch inside diameter hose. The other end is a 3/4-14 male NPT thread.

This stainless steel combination nipple is designed to connect a 3/4 inch ID hose to a 3/4-14 male NPT thread. It's made for that exact purpose.

For liquid suction service, yes, that setup works. The barb end fits a 0.75-inch ID hose and the threaded end is 3/4-14 male NPT, so it'll mate up with a standard female NPT port on your pump. Just keep in mind that working pressure on combination nipples like this one depends on the hose construction, clamp type, number of clamps used, placement, and the temperature and product being moved. Get your clamps seated right and you'll be in good shape for low-pressure suction duty.