Deltana MDHF25 Magnetic Door Holder Flush 2-1/2" Diameter

That's what it's for. The MDHF25 is a magnetic catch that holds a door in the open position, so you get hold-open on a door that has no closer at all, or on one where you don't want the expense and weight of a hold-open closer arm. It's a holder, not a closer: it will not return the door or control the swing, so on a fire door or any opening that has to self-close, this is the wrong part.

Flush is the choice when you don't want anything standing up off the floor or the wall. The MDHF25 is the flush 2-1/2 inch version, so the base recesses in and the walking surface stays clear, which is why it gets specified in corridors, hospitality, and anywhere a cane or a cart would catch a projecting stop. The trade is labor: a flush unit needs a cutout drilled in the floor or wall, so it suits new work or a renovation where the finish is coming up anyway. If you're retrofitting an occupied space and can't cut the substrate, a surface mounted magnetic holder such as the Emtek 2256 screws to the face instead.

Both are magnetic door holders that catch and hold a door open without a closer, but they differ in face diameter and mounting style. The Deltana MDHF25 is a flush-mounted holder with a 2-1/2 inch diameter, built of solid brass and offered in nine finishes including PVD Polished Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Paint Black, Polished Chrome, Brushed Chrome, Polished Brass, and Antique Brass. The Emtek 2256 magnetic door stop and holder is a 3 inch unit. If a floor or wall prep is already cut for a 2-1/2 inch face, the MDHF25 drops into it; a 3 inch body needs its own opening.

Nine finishes: PVD Polished Brass, Polished Brass, Antique Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, and Paint Black. If you're matching an existing building standard, note that Deltana offers both a PVD polished brass and a standard polished brass. PVD is the one to spec for exterior doors or heavy-traffic openings where a lacquered brass would wear through.

Solid brass. The whole body is brass rather than a plated pot metal casting, which matters on exterior vestibules and in coastal or high-humidity buildings where a plated zinc holder chalks and pits. Brass also machines clean, so the flush 2-1/2 inch face seats flat in the cutout.

The Emtek 2256 magnetic door stop and holder is a 3 inch unit, a half inch larger across the face than the Deltana MDHF25, which is a 2-1/2 inch flush magnetic door holder. Buyers stepping up to the 3 inch face are usually covering a larger existing cutout or matching the visual scale of other hardware on a heavier door. The MDHF25 stays the choice when the 2-1/2 inch footprint is what the door and jamb prep call for.

No. The Deltana MDHF25 is a magnetic holder: it catches the door with a magnet and keeps it in the open position, which is what you want when the alternative is specifying a heavier door closer with a hold-open. A plain bumper or stop only limits travel and stops the door from striking the wall; it will not keep the door standing open. The Emtek 2256 is the same magnetic stop-and-holder concept in a 3 inch size. For a property manager standardizing doors that need to stay open on their own, the magnetic holder is the part; a bumper is not a substitute for it.

The Deltana MDHF25 is designated for commercial use and is a solid brass, flush-mount magnetic holder at 2-1/2 inches, offered across nine finishes so one part number covers a facility running mixed hardware finishes. The Emtek 2256 magnetic door stop and holder is the 3 inch option in the same product family. An institutional buyer standardizing a fleet of doors generally picks one face diameter and stays with it so replacement stock fits every existing prep.