Patent ID: 7270144

Claim:
A washing machine outlet box comprising a housing having a bottom wall containing multiple openings, two valve mount inserts selectively insertable into at least one of the openings to provide valve mounts for hot and cold water shut off valves, and a test cap that is insertable into an other of the openings, the test cap including means for sealing off the other opening during turning of the test cap in a tightening direction after inserting the test cap into the other opening, and being turnable in an untightening direction for removal of the test cap from the other opening, at least one locking tab on one of the bottom wall and the valve mount inserts and a notch in the other of the bottom wall and the valve mount inserts through which the locking tab is insertable for engagement with the other of the bottom wall and the valve mount inserts upon turning the valve mount inserts in a locking direction, wherein one of the test cap and the bottom wall has at least one tab that is insertable through a notch in the other of the test cap and the bottom wall for engagement with the other of the test cap and the bottom wall upon turning the test cap in the tightening direction, and a recess in the other of the test cap and the bottom wall in circumferential spaced relation from each notch for capturing the locking tab during turning of each of the valve mount inserts in the locking direction, a first ramp leading into each recess when each of the valve mount inserts is turned in the locking direction, and a second ramp leading in the opposite direction from the notch that is engageable by the tab during turning of the test cap in the tightening direction to cause a seal on the test cap to press into sealing engagement with the bottom wall radially outwardly of the notch.