The Fire Guard Icemaker Box is similar to the Washer Box in that it is a sturdy, Hi-Temp PVC, Fire-Rated Box but it is designed for ice-makers, with one valve. As with the Icemaker Box, you don’t have to stuff with fire-resistant material and caulk to satisfy building code requirements. You can now make sure that the rating of a fire-rated wall is not reduced by simply installing the Icemaker Box (in the approved manner ) in the opening.