Boltigen 3/4inch Brass Swivel Garden Hose Fittings, 2PCS 3/4" GHT Female x 3/4" NPT Male Garden Hose Adapter, 3/4"GHT Quick Swivel Hose Connector,...

The Boltigen 3/4 GHT Female x 3/4 NPT Female Swivel Adapters are well made with good machine work and no burs to cut your finger on. I used these to connect my pressure washer to the garden hose and it worked well for that. I had to use a pair of plyers to get it tight so it wouldn't leak but I feel that was as much the garden hose end as this adapter. After tightening the fitting, I had no leaks.

Update: It leaks at the joint between the garden hose threads and the NPT threads. A rubber washer was inserted, undeformed, and tightened down, and still the leak persisted. Original: I looked over the listing, and no where does it say it includes plumber's tape but it is shown prominently in the picture. What you do get is four garden hose rubber washers and two brass fittings. I mark it down a star because it isn't the best bargain and was made less valuable by not including the plumber's tape. In this listing https://amzn.to/46poDge (support link) you get three connectors for less money, but their isn't any way to tighten the garden hose, or the NPT item, separately. Either the hose or the NPT item has to be twisted to tighten the connection. In this listing https://amzn.to/3Ss0Iap (support link) it's less money because only get one connector. The benefit is that it does everything these two items do, but without adding the expense incurred by having two connectors. If you only needed one, like I did, then this will save you a couple of bucks. Then finally there is this listing: https://amzn.to/3Sq7ZaE (support link). Less money, three connectors, and they work the same way these connectors work.

Mixing and matching various hoses and needed some adapters. These seem well made. Plus purchasing the adapters is more affordable than all new hoses. The raised pieces allowed me to tighten the pieces with a set of pliers. After using the pliers I had a tight seal with no leaking.