G Thread (BSP) to NPT (US Thread) Pipe Fitting Adapter with G Thread Bonded Washer Seal Included 1/2" FG x 1/2" MNPT 2 Pieces

I read several reviews about the tankless water heater that I bought on Amazon that told of the problems with piping it in. Many reviewers said that they had to use gobs of teflon tape to get the fittings water tight. The problem is that the fittings are a straight thread and not a tapered pipe thread like we use in the U.S.A. After doing a little research, I found this adapters. They work perfectly with one caveat. The seal rings actually seal the top of the fitting to a flange. On the water heater I bought, this flange was used to secure the water heater fitting to the case of the water heater making these bonded seals useless. I found that a common "O" ring used for a shower head solved the problem by placing it in the bottom of the fitting where it attaches to the water heater. The other end is a standard tapered thread that my piping attached to with no problem. These were a great problem solver for me.

I needed to adapt hydraulic hoses with British Standard Pipe threads to Nati’l Pipe Thread attachments on my tractor. These made the adaptation simple, and include the required seals for the BSP side of the adapator. No leaks...works great.... Solid Product.

Slow leak on npt threads

As described

I bought an Asian shower, and the threads were metric, and everything here in the US is what we falsely call standard. Anyhow, this fixes the problem. Just count for the added space. I added teflon tape to mine. Months with no leaks.

Product works, but two issues. The supplied washers must be for a different product, not this one. I had to go to a box store and get shower hose washers, they fit (the non tapered side). Secondly, they are way overpriced.

Perfect fit, I was in Europe a few weeks ago and brought back two manifolds for a bathroom rehab, without thinking that the BSP thread will not work in the US. When I realized the problem, I immediately ordered these adapters on Amazon.I installed these on the manifolds, perfect fit. The included gaskets are great.

I tried other G to NPT adapters you can buy on Amazon none of them worked - except this one!