The modular irrigation valve housing comprises a waterproof enclosure that is placed into the ground to house an electrically operated valve. An inlet pipe and an outlet pipe couple to the valve via slip assemblies that slide in and out of the pipes to adjust the distance between pipes and the valve. The slip assemblies mate with receivers that can be coupled to the intake and output of the valve. The slip assemblies comprise double O-rings on one end and a single O-ring and a retaining ring on the other end to form leak proof connections. The box comprises a lid to cover the box, an internal electrical housing for watertight electrical connections to the outside, and a locator device that makes it easier to find the valve when it requires maintenance.
