I bought the 1" Barb x 3/4" Male Pipe fitting to replace the steel pipe setup from the well that always rusts and leaks due to the very acidic water in the area. This is a very heavy duty brass fitting with a thick wall. The barb is big enough for two pipe clamps and fits securely in the black pipe coming from the well. It helps to pre-heat the black pipe from the well with a hairdryer. Now all the steel pipe is gone and we'll never have to worry about pipes failing or pin-hole leaks again. This is the perfect product for transitioning from the black pipe from the well to CPVC. The water eats copper pipes, so CPVC (or I suppose PEX nowadays) is the piping we must use due to the acidity.