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A heavy-duty steel bolt patio door lock to prevent sliding or lifting of door. Adjustable for ventilation or full security. Large rectangular housing and pin are compatible with 1-3/8″ – 1-3/4″ in. thick doors and a 1/4″ in. drill hole in the fixed-panel rail. No Key Required.
- Size 6″ x 1-1/8″ in.
- For use on interior and exterior sliding doors
- Residential, commercial and industrial use
- Available in White Finish
Manufacturer Resources
Product Specs
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Door Trim and Latch Protection
- Product Type:
- Lever
- Commercial/Residential:
- Commercial
- Subcategory:
- Door Trim and Latch Protection
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Pro-Lok EPL-108-W – Frequently Asked Questions
1) Will the Pro-Lok EPL-108 patio door lock fit my sliding glass door?
The EPL-108 works on sliding patio doors with panels 1-3/8 to 1-3/4 inches thick. The large rectangular housing mounts on the sliding panel and the pin drops into a 1/4 inch hole you drill in the fixed-panel rail. If your door panel falls outside that thickness range, this pin won't seat correctly.
2) Does the Pro-Lok patio door lock stop the door from being lifted out of the track?
Yes. The heavy-duty steel bolt blocks both sliding and lifting, which is the common defeat on a patio door where an intruder pops the panel up out of the track. The pin passes through the sliding panel into the fixed-panel rail, so the panel is pinned in two directions, not just held against sliding.
3) Can I leave the patio door cracked open for air and still keep it locked?
That's what the adjustable setting is for. Drill a second 1/4 inch hole further along the fixed-panel rail and the pin holds the door at a vent gap; the original hole gives you full security when the door is closed. No key is needed to move between the two.
4) Do tenants need a key for the Pro-Lok EPL-108, or is it keyless?
Keyless. There is no cylinder and no key to issue, cut, or replace, so a property manager putting these on a run of patio doors has nothing to key alike and nothing for a tenant to lose. That also means it is a secondary lock operated from the inside, not a substitute for the door's primary latch.
5) How big is the Pro-Lok large rectangle patio door lock housing?
The housing measures 6 x 1-1/8 inches. Check that against the flat area of your sliding panel rail before you drill, particularly on narrow-rail aluminum doors where trim or a screen track can crowd the mounting face.
6) Is this patio door lock rated for commercial use or just houses?
Pro-Lok lists the EPL-108 for residential, commercial and industrial use, and it is catalogued on the commercial side. Apartment and hotel patio sliders, back-of-house exterior sliders, and single-family rentals all fall inside what it is built for.
7) What finish and model number do I order for the Pro-Lok large rectangle patio lock?
One configuration: model EPL-108-W, white finish. There is no other color or size option under this model, so a property manager standardizing across a building gets a consistent look without specifying anything beyond the model number.
8) Can I use the Pro-Lok EPL-108 on an interior sliding door, not just an exterior patio slider?
Both. It's listed for interior and exterior sliding doors, so it works on an interior slider closing off a storage or utility area as well as on the exterior patio panel, provided the door falls in the 1-3/8 to 1-3/4 inch thickness range and the fixed rail can take a 1/4 inch hole.
9) What do I need to install a Pro-Lok patio door lock?
A drill with a 1/4 inch bit is the tool that matters, since the pin needs a 1/4 inch hole through into the fixed-panel rail. Pro-Lok publishes an installation guide for the EPL-108 covering the layout. No wiring, no cylinder, no strike prep.
How fast can I get the Pro-Lok EPL-108-W delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pro-Lok EPL-108-W come with a warranty?
Absolutely. The Pro-Lok EPL-108-W is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pro-Lok EPL-108-W?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Pro-Lok EPL-108-W from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.