ProSource Matte Black Entry Lever

The ProSource entry lever (model LS3X900YASR4V24) solves the door prep mismatch problem that drives contractors crazy. The adjustable 6-way latch and dual backset options (2-3/8” or 2-3/4”) mean you’re not stuck ordering a different lockset when the door prep doesn’t match what you expected. At Grade 3 security rating with KW1 keyway, it delivers standard residential security without the commercial-grade price tag.

Installation Flexibility That Actually Matters

The 6-way adjustable latch is the real story here. Most entry levers force you to match the exact door prep — this one adapts. The adjustable backset handles both 2-3/8” and 2-3/4” configurations, covering the two most common residential standards. Door thickness compatibility spans 1-3/8” to 1-3/4”, which handles everything from hollow-core interior doors to solid exterior slabs.

Specification	Value
Backset	2-3/8” or 2-3/4” adjustable
Door Thickness	1-3/8” to 1-3/4”
Latch Type	6-way adjustable
Keyway	KW1 (Kwikset)
Keying	KA3 (Keyed Alike 3)
Security Rating	Grade 3

This flexibility matters in Montana’s older housing stock. Plenty of homes built before standardization have odd door preps. The adjustable latch saves a trip back to the yard.

Design and Durability

The matte black finish hits the contemporary trend without looking like it’s trying too hard. More important for Montana conditions — matte black hides dust and fingerprints better than polished finishes. After a dusty summer or muddy spring, that matters.

Metal construction beats the plastic internals you’ll find in budget locksets. The lever handle design works better than knobs for anyone with arthritis, carrying groceries, or wearing winter gloves. Levers meet ADA requirements too, though that’s less critical for residential work.

The included items cover a standard installation: lever handle set, adjustable 6-way latch, 2 brass keys, and mounting hardware. Nothing fancy, but everything you need.

The Grade 3 Reality

Grade 3 security rating means residential-duty hardware. It’s not stopping determined intruders, but it handles normal residential use. For context, Grade 1 is commercial high-security, Grade 2 is light commercial, and Grade 3 is residential. Most Montana homes don’t need more than Grade 3 on interior-to-garage doors or secondary entries.

The KW1 keyway keeps things simple — it’s the Kwikset standard that locksmiths stock and hardware stores can duplicate. KA3 (Keyed Alike 3) means multiple locks can share the same key, useful for matching front and back entries.

Applications and Competition

ProSource positions this for residential entry doors, commercial interior/exterior doors with standard security needs, and contemporary home renovations. They offer related products including a passage lever (LS3X903YASR4V24) for non-locking applications, an entry knob version (TFX900BSR4V24) for traditional aesthetics, and a combination lockset (HPX9S3BSR4H24) that includes a matching deadbolt.

The adjustable features put this lever ahead of fixed-backset options when you’re dealing with unknown door preps. Worth considering if you’re tired of locksets that only work with one specific configuration.

FAQ

What door thicknesses work with this lever? The lever fits doors from 1-3/8” to 1-3/4” thick, covering standard residential door thicknesses.

Can this lever be keyed to match existing locks? Yes, it uses the KW1 (Kwikset) keyway, the most common residential keyway. Any locksmith can rekey it to match your existing Kwikset locks.

What’s included in the package? You get the lever handle set, adjustable 6-way latch, 2 brass keys, and standard mounting hardware — everything needed for installation.

How does the 6-way adjustable latch work? The latch adjusts to accommodate various door preparations, eliminating the need to match exact door prep specifications. This flexibility handles both standard backsets and various strike alignments.

Is Grade 3 security adequate for entry doors? Grade 3 is the standard residential security rating. It’s designed for normal residential use on exterior doors where basic security is sufficient. For primary entries, consider adding a separate deadbolt for enhanced security.