The Grant Bi-fold 25 by Hettich is a light duty top hung bi-folding door system for residential and commercial applications. Use the floor cam as a marking template to ensure top and bottom hole alignment with no measuring. Features a unique stay-open stayclosed hardware design to keep doors in place. Spring plungers glide smoothly and easily while staying securely in place.Mounting: TopAdjustment: 5/16"Door Thickness: 3/4" TO 1-3/4"Headroom: 1-25/32" min - 2-3/32" maxHT113-434-600 2-door set includes: 1 - top pivot, 1 - floor cam bottom pivot, 2 - plunger guides, 3 - hinges, and screws
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