DN25 1 Inch Brass Water Pressure Regulator Valve with Gauge Pressure Water Pressure Reducing Valve

While it is one inch iron pipe size, the threads on the ends are too shallow and are not tapered enough to keep from leaking no matter how much or type of dope or teflon sealant. I had to use two "O" rings, one in each end to used as a seat for the pipe to stop from leaking. Device needs to be longer, with more threads and taper n each end.

Pressure gauge need to be changed , the range is to big for this controler. Conections are too short and need some adjustments on the male adaptor to get a good seal.

Excellent product and prompt delivery.