UHS HardwareStaff Answer
Jul 24, 2026 - 11:03 AM
No, SKU MRK-2750B/3-LH is not designed to replace a 4-point multipoint lock system. This is a Marks USA Thinline 2750B ornamental iron/storm door mortise lockset with a single cylinder, 1" backset, 1" deadbolt, and 1/2" latch projection. It operates as a standard mortise-style lock, not a multipoint locking mechanism with rods or multiple locking points.
To replace a 4-point multipoint lock, you should match the existing lock body, backset, faceplate dimensions, handing, overall length, and locking point locations. This item may work for certain ornamental iron or storm doors, but it would not be a direct replacement for a multipoint system.
To replace a 4-point multipoint lock, you should match the existing lock body, backset, faceplate dimensions, handing, overall length, and locking point locations. This item may work for certain ornamental iron or storm doors, but it would not be a direct replacement for a multipoint system.
