Salsbury Surface Mounted 4C Horizontal Mailbox Unit, Maximum Height, Double Column, Aluminum, Front Loading, Private Access Tools 42 Water Resistant Yes Waterproof GlueCore 42 Water Resistant Yes Waterproof Yes PEI Rating 4 heavy traffic For Use on Floors Yes For Use on Walls Yes For Use with Backsplashes Yes For Use in Showers Yes For Use in Bathrooms Yes For Use in Kitchens Yes For Use in Laundry Rooms Yes For Use in Entryways Yes For Use with Underfloor Heating Yes For Use with Fireplace Exteriors No For Use on Countertops No For Use in Garages No For Use with Patios No For Use with Pools No Sold As Piece Tile Look Marble look Recommended Grout Item Number 1024799 Corresponding Trim Item Number 1552804 UNSPSC 30161700 Frequently Asked Questions (FAQ): The Heritage bifold door lends a refined surface mounted 4C unit—built to last and designed to simplify tenant deliveries double column