Product review (3 stars): It's OK, but better ones are out there
One of the valves doesn't shut off completely, has a small leak in the ball valve.  But the 1/2" PEX connections work fine.  Also, it will fit 1-1/2" ABS drain pipe.  I used this in a new laundry setup in a detached garage with exposed-frame stud walls, no wall board.  The plastic straps that fasten the box to the wall studs for support are a bit thin and flimsy.  A drywall covering would provide the box with more support.  The valves can be re-oriented so that the drain is in the center, which is good if your supply lines are coming down the wall downward instead of up the wall from below. It's OK, but there are better constructed versions at t higher price out there.  You may wish to use better version for inside your house.