Place the water regulator next to the water hose where you plan to install it. Mark each end of the regulator onto the hose with a marker.
Cut the section of hose out with a sharp utility knife.
Slide the hose couplers into each end of the supply hose. The couplers look like couplers you see on a garden hose. The larger coupler is the female coupler and the smaller coupler is the male coupler.
Place band clamps over the hoses where the couplers slide into the hose ends. Tighten the band clamps with a screwdriver.
Thread the couplers onto each end of the water regulator. One end of the regulator accepts make coupler and the other end of the regulator accepts the female coupler.
Set the dial on the regulator to the desired level.