The 6-1/2″ in. narrow stile steel latch protector designed to protect and obstruct access to the latch or deadbolt of outswinging doors. Reversible for left or right-handed doors. Includes hardware.
- Size 6-1/2″ X 3-1/2″ in.
- For use on out-opening narrow stile or storefront doors
- Compatible with backsets, deadbolts, and locksets
- Residential, commercial and industrial use
- Available in Aluminum and Duronodic Finishes
Manufacturer Resources
Product Specs
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Door Trim and Latch Protection
- Product Type:
- Latch Protectors
- Commercial/Residential:
- Commercial
- Subcategory:
- Door Trim and Latch Protection
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Pro-Lok ELP-300-AL – Frequently Asked Questions
1) Will a latch guard work on an inswinging door, or is the Pro-Lok ELP-300 only for out-opening doors?
Out-opening only. The Pro-Lok 6-1/2 inch narrow stile latch protector mounts on the exterior face of an outswinging door to cover the gap and block access to the latch or deadbolt. On an inswinging door the latch is already protected by the frame stop, so a guard of this style has nothing to do; that opening needs a frame-mounted strike or angle guard instead.
2) Will a 6-1/2 inch latch guard fit a narrow stile aluminum storefront door?
That is exactly what the Pro-Lok ELP-300 is cut for. It measures 6-1/2 by 3-1/2 inches, short enough to sit on the narrow lock stile of an aluminum storefront door without running into the glass stop. Wider guards built for hollow metal doors overhang a storefront stile and will not lie flat.
3) Will a latch protector work over a deadbolt, or only a cylindrical latch?
Both. The ELP-300 is made to shield either the latch or the deadbolt, and Pro-Lok states it works with common backsets, deadbolts and locksets. If your storefront door has a hookbolt or deadlatch behind an MS-style prep, the guard covers the gap at the meeting edge rather than mounting to the lock itself.
4) What are the alternatives to the Pro-Lok ELP-300 for guarding an aluminum storefront latch?
Don-Jo makes close equivalents. The NELP-207 is the same 3-1/2 by 6-1/2 inch footprint in 12 gauge steel for out swing aluminum entrance doors. If your stile has room for a taller plate, the Don-Jo LP-307 is 2-5/8 by 7 inches in 12 gauge steel for aluminum storefront entrance doors, and the GLP-307 is the same 2-5/8 by 7 inch size for aluminum entrance doors. Trimco's PG8000 Series covers panic and latch guards if you are matching a specified series.
5) What is the closest equivalent to the Pro-Lok 6-1/2 inch narrow stile latch protector?
The Don-Jo NELP-207 is the nearest match. It is a latch protector for aluminum entrance doors in 12 gauge steel, measuring 3-1/2 inches by 6.5 inches, for out swing doors. The Pro-Lok ELP-300 covers the same footprint at 6-1/2 inches by 3-1/2 inches in steel, also for out-opening narrow stile or storefront doors, and it is reversible for left or right handed doors and ships with hardware. If you are matching an existing plate on a storefront opening, those two sit on the same hole pattern footprint.
6) The door has an exit device, not a deadbolt - is the Pro-Lok narrow stile latch protector still the right part?
For an opening with a panic device, look at the Trimco PG8000 Series, which is a panic and latch guard series rather than a latch guard alone. The Pro-Lok ELP-300 is built to protect and obstruct access to the latch or deadbolt on out-opening doors and is stated as compatible with backsets, deadbolts and locksets. If what you are shielding is the latch of an exit device, the PG8000 Series is the family written for that; if it is a deadbolt or lockset on a storefront leaf, the ELP-300 is the direct fit.
7) Does the Pro-Lok narrow stile latch guard come with screws, or do I have to buy fasteners separately?
Mounting hardware is in the box. The steel guard ships with its fasteners, and Pro-Lok publishes an installation guide for the ELP-300 covering the layout. Nothing else is required to hang it on the door.
8) My storefront doors keep getting pried open at the latch. Will a latch protector stop that?
A latch guard is the standard fix for exactly that attack. The ELP-300 is a steel plate that covers and obstructs access to the latch or deadbolt from outside, so a pry bar or shim cannot reach the bolt through the gap between door and frame. It does not upgrade the lock itself, so if the deadlatch is worn or the bolt throw is short, replace the lock as well as adding the guard.
9) Can I standardize on one latch guard across a building with both wide stile and narrow stile doors?
Not with a single part. The Pro-Lok 6-1/2 by 3-1/2 inch guard is sized for narrow stile and storefront doors; a wide stile hollow metal opening takes a larger plate. If you are matching a mix, the Don-Jo NELP-207 shares the same 3-1/2 by 6.5 inch narrow stile footprint, so you can hold one size across the storefront entrances and spec separately for the flush doors.
10) Do I need to order a left hand and a right hand version of the Pro-Lok latch protector for a pair of doors?
No. The Pro-Lok ELP-300 is reversible for left or right handed doors, so one part number covers both leaves of a pair and you order by finish only, aluminum or duronodic. The Don-Jo latch protectors are specified by swing rather than hand - the GLP-307, LP-307 and NELP-207 are all out swing parts - so on a mixed-hand storefront run the reversible Pro-Lok keeps you on a single line item.
11) What is the difference between the Don-Jo GLP-307 and the LP-307 latch protectors?
Both are Don-Jo latch protectors at 2-5/8 inches by 7 inches for out swing aluminum entrance doors, and both carry an entrance product function. The LP-307 is specified in 12 gauge steel and is called out for aluminum storefront entrance doors; the GLP-307 is described for aluminum entrance doors. If you are ordering against a storefront opening and want the gauge stated on the order, the LP-307 is the part number that states it.
12) Will a latch protector for aluminum entrance doors work on an inswing door?
No, and this is the most common wrong substitution in the group. The Pro-Lok ELP-300, the Don-Jo GLP-307, the Don-Jo LP-307 and the Don-Jo NELP-207 are all specified for out swing or out-opening doors, because the part shields a latch that is exposed on the pull side. None of them is the part for an inswing opening - on an inswing door the latch is not reachable from outside and a different class of hardware applies.
13) Is this latch guard heavy enough for a commercial entrance, or is it a residential part?
Steel construction, and Pro-Lok rates the 6-1/2 inch narrow stile guard for residential, commercial and industrial use. ZenSupply classes it as commercial door hardware. For a high-traffic tenant entrance being pried at the latch, that is the right class of part.
14) Which latch guard should I standardize on across a portfolio of commercial storefront entrances?
The Pro-Lok ELP-300 is a commercial rated part suited to residential, commercial and industrial use, in a single reversible 6-1/2 inch by 3-1/2 inch steel plate that ships with hardware and comes in aluminum and duronodic to match common storefront finishes. Standardizing on it means one SKU per finish across left and right hand leaves. If some of your openings carry exit devices, pair it with the Trimco PG8000 Series panic and latch guards for those doors and keep the two families as your whole program.
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Can I return it if it doesn’t work for me?
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Does the Pro-Lok ELP-300-AL come with a warranty?
Absolutely. The Pro-Lok ELP-300-AL is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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