Accentra 4721LN Grade 1 Commun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$694.00
$538.68
Yale Commercial Yale 4721LN Grade 1 Communicating Double Cylinder Lever Lock Monroe Trim Design YAL-MO4721LN

Accentra 4721LN Grade 1 Communicating Double Cylinder Lever Lock with Monroe Trim Design

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Model: YAL-MO-4721LN-626
From the 4700 Series Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$694.00
$538.68
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Accentra 4721LN Grade 1 Communicating Double Cylinder Lever Lock with Monroe Trim Design

Professional Grade 1 Cylindrical Lock Solution

The Accentra 4721LN Grade 1 Communicating Double Cylinder Lever Lock delivers professional-grade security with Monroe trim design for commercial applications. This ANSI/BHMA Grade 1 certified cylindrical lock features adjustable door thickness from 1-3/8" to 1-3/4", 2-3/4" standard backset, and 1/2" stainless steel latchbolt throw. UL fire-rated up to 3 hours with heavy-gauge steel mechanism construction ensures reliable performance in demanding commercial environments.

Professional Features & Benefits

  • ANSI/BHMA: A156.2, Series 4000 Grade 1
  • UL-cUL: UL-cUL fire-rated up to 3 hours
  • Windstorm: 4700LN Certified (refer to local codes)
  • Mechanism: Heavy-gauge steel, die-cast, zinc-plated, chromated
  • Backset: 2-3/4" standard
  • Latchbolt: 1/2" stainless steel throw standard
  • Guardbolt: Deadlocks latchbolt when door is closed; standard on all locking functions
  • Door Thickness: 4700LN adjustable from 1-3/8" to 1-3/4". 4700 adjustable from 1-3/4" to 2"
  • Fronts: 2-1/4" x 1-1/8" beveled standard; flat fronts available to order
  • Cylinders: Brass, 6-pin, keyed-random cylinder with two keys furnished standard, 7-pin not available.
  • Reversibility: Non-handed
  • Strikes: ANSI strike 4-7/8" x 1-1/4" x 1-1/4" lip to center supplied standard. Optional T-strike available to order for 4700LN.
  • Finishes: 4700LN available in 7 finishes, 4700 available in satin stainless steel (630) only.
  • Warranty: 5-year mechanical

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Accentra Quality?

Accentra cylindrical locks deliver professional-grade reliability with heavy-gauge steel construction and ANSI/BHMA Grade 1 certification for demanding commercial applications. UL fire-rated up to 3 hours with 5-year mechanical warranty provides confidence in critical security applications. Engineered for demanding commercial applications where dependable performance and code compliance are essential.

Product Specs

Series:
4700 Series
Subcategory:
Cylindrical
Keyed Function:
Double Cylinder
Grade:
Grade 1
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Handle Type:
Lever
Lock Function:
Communicating
Product Attribute:
Cylindrical Locks
Product Model:
YAL-4721LN
Collection:
4700 Series
Product Function:
Communicating
Lever Design Name:
Monroe Lever
Product Category:
Mechanical Locks
Department:
Door Hardware

Accentra YAL-MO-4721LN-626 – Frequently Asked Questions

1) What does the communicating function on the Accentra 4721LN lever lock actually do?
The 4721LN is a double cylinder communicating lock: there is a key cylinder on both sides and no free egress by turning the lever alone. Both levers stay locked until unlocked by key, which is how connecting doors between two occupied spaces (adjoining hotel rooms, paired offices, suite pass-throughs) get controlled from either side. If you need someone to always be able to get out by turning the inside lever, this is the wrong function - specify a storeroom, entry, or classroom function instead. Note that because both sides key-lock, communicating functions are restricted under egress codes in many occupancies, so verify the opening allows it.
2) Will the Accentra 4721LN fit a 1-3/8 inch door, or does it need a 1-3/4 inch door?
Both. The 4700LN, which is the Monroe lever trim version the 4721LN uses, adjusts from 1-3/8 inch to 1-3/4 inch, so it covers standard commercial 1-3/4 inch doors and older 1-3/8 inch interior doors with the same lock. If your door runs thicker than 1-3/4 inch, up to 2 inches, that is the 4700 escutcheon version rather than the LN, and that one comes in satin stainless steel (630) only.
3) Do I need to specify handing when ordering the 4721LN Monroe lever lock?
No. The 4700LN is non-handed and fully reversible, so one part number covers left and right hand openings. That is useful for a property manager or MRO stockroom holding spares, since a single lock on the shelf covers any door in the building.
4) Will the 4721LN latch into the strike already in my frame?
It ships with an ANSI strike, 4-7/8 x 1-1/4 inches with a 1-1/4 inch lip to center, and the latchbolt has a 1/2 inch stainless steel throw. If your frame is already prepped for a standard ANSI 4-7/8 inch strike, it drops in. If your existing prep is a T-strike cutout, an optional T-strike is available to order for the 4700LN rather than modifying the frame. Backset is 2-3/4 inch standard, so the existing cross-bore on a commercial door will usually line up.
5) Is the Accentra 4721LN fire rated, and what grade is it?
It is ANSI/BHMA A156.2 Series 4000 Grade 1, and UL-cUL fire rated up to 3 hours. The 4700LN is also Windstorm certified, though that one should be checked against your local code before it is written into a spec. For a school, hospital, or government facility standardizing hardware, those are the three lines a spec reviewer asks for.
6) What cylinders and keys come with the Accentra 4721LN, and can I get it in 7-pin?
Each lock comes with brass 6-pin keyed-random cylinders and two keys. Since this is the double cylinder communicating function, there is a cylinder on both faces. Seven-pin is not available on the 4700 Series, so if your facility is standardized on a 7-pin master key system, this lock will not key into it. Keyed-random also means these are not keyed alike out of the box; keying into an existing system has to be specified as an order option.
7) What is the closest Grade 1 cylindrical lever lock to the Accentra 4721LN for a door that is 1-3/4 inches to 2 inches thick?
The Accentra 4721LN in the 4700LN configuration is adjustable from 1-3/8 inches to 1-3/4 inches, so a 2 inch door falls outside it. The Corbin Russwin CL3110 is a Grade 1 vandal resistant cylindrical lever lock with a 1-3/4 inch to 2 inch door thickness range, and the Falcon K101 is a Grade 1 heavy duty cylindrical lever with a 1-3/8 inch to 2-1/4 inch range. Both of those are passage function rather than keyed, so on a thicker door needing key control you would be looking at a different function within those series.
8) For a classroom door, should I use the Accentra 4721LN or something else?
The 4721LN is a communicating function, keyed on both sides, which is not how a classroom opening is normally specified. For classroom duty, the Dexter C1000 classroom is a Grade 1 keyed clutching cylindrical lever with a 1-3/8 inch to 1-3/4 inch door range, and the Dexter C1000 classroom security adds keyed control of the inside lever at the same grade and door range. The Cal-Royal AG03 is a Grade 2 classroom lever with a 6-pin Schlage C keyway and 2-3/4 inch backset, which matches the 2-3/4 inch backset the 4721LN uses.
9) Is a privacy lever the same thing as the Accentra 4721LN communicating lock?
No. The 4721LN is keyed on both sides with a cylinder each face, intended for a door between two occupied spaces where either side may be secured against the other with a key. A privacy set locks from inside with a thumbturn and has no key control - the Hager 2540 with Withnell lever and the Arrow MK02 with Tudor knob are privacy function sets, and the Kwikset 300BRNL Breton is a Grade 3 privacy lever. Those are bed and bath products, not a substitute where key control is required.
10) Can I use a Grade 2 or Grade 3 entry lever in place of the Accentra 4721LN?
The 4721LN is certified to ANSI/BHMA A156.2 Series 4000 Grade 1 and is UL fire rated up to 3 hours, so on a rated or high-traffic commercial opening a lower grade set will not carry the same specification. Entry function alternatives at lower grades include the Hager 2525 Grade 2 commercial entry lever with a 1-3/8 inch to 2 inch door range, the Falcon B511CP6D Grade 2 entry/office lever, the Cal-Royal AUS00 Grade 3 entrance/office lever, and the Master Lock RL01 Grade 3 keyed entry lever. All of those are single cylinder entry rather than the communicating double cylinder arrangement of the 4721LN.
11) For a patient room or detention-type door, is the Accentra 4721LN the right function or should I look at an asylum lock?
The 4721LN is a communicating function, keyed both sides with the levers operating the latch. An asylum function keeps both levers rigid until keyed, which is the usual call for institutional and utility openings. The Dexter C1000 asylum (F87) is Grade 1 with a 1-3/8 inch to 2 inch door thickness range, and the Arrow MK33 is a heavy duty asylum cylindrical lock with a ball knob and a conventional Schlage C keyway cylinder. The Arrow is a knob, so it will not meet a lever requirement the way the 4721LN Monroe lever does.
12) What is the guardbolt on the 4721LN for?
The guardbolt deadlocks the latchbolt whenever the door is closed, which blocks someone from shimming or carding the latch back. It is standard on all locking functions in the 4700 Series, so it is on the 4721LN communicating lock as well. For an exterior-adjacent or tenant-separation opening that is the difference between a latch that holds and one that gets loided.
13) What front does the 4721LN come with, and can I get a flat front instead of beveled?
Standard front is a 2-1/4 x 1-1/8 inch beveled front, which is what a typical commercial door edge prep takes. Flat fronts are available to order if your door edge is square or your existing prep is cut for flat. Worth settling before the order goes in, because swapping fronts after the door is routed is not a field fix.
14) I need a Grade 1 lever lock but not the communicating function - what else is there?
Communicating is a narrow function, so if what you actually need is a plain latch or a keyed opening, look at other Grade 1 cylindrical levers. The Dexter C1000 Series covers passage, classroom, classroom security, and asylum functions, with the passage and classroom versions listed at 1-3/8 to 1-3/4 inch door thickness like the 4700LN. The Falcon K101 is a Grade 1 fire rated passage lever with a wider 1-3/8 to 2-1/4 inch thickness range. Corbin Russwin CL3110 is a Grade 1 vandal resistant passage lever for 1-3/4 to 2 inch doors. All of those are latch-only or single-function locks, not a two-sided key lock.
15) Is a Grade 2 lever like the Hager 2525 or Cal-Royal AG05 close enough to the Accentra 4721LN?
They are not the same duty class or the same function. The 4721LN is ANSI/BHMA A156.2 Series 4000 Grade 1 with a double cylinder communicating function. The Hager 2525 is a Grade 2 entry lever for 1-3/8 to 2 inch doors and the Cal-Royal AG05 is a Grade 2 storeroom lever for 1-3/8 to 1-3/4 inch doors - both single-cylinder, both lighter duty. For a high-traffic commercial or institutional opening being written to Grade 1, a Grade 2 lever will not hold the spec. For a light-traffic interior door where cost matters more than cycle life, they are reasonable.
16) I only need the opening to latch and release freely - is there a simpler alternative to the Accentra 4721LN?
The 4721LN is a keyed communicating lock with cylinders on both sides, which is more lock than a free-swinging opening needs. For pure latching with no key, the Falcon K101 and the Dexter C1000 passage are both Grade 1 non-keyed passage cylindrical lever locks, and the Design Hardware X75 is a Grade 1 passage lever lockset. The Falcon B101 and Design Hardware J75 cover the same passage duty at Grade 2.
17) What should I use instead of the Accentra 4721LN on a storeroom or supply room door?
A storeroom opening wants the outside lever always locked and key entry only, which is a different function from the 4721LN communicating double cylinder arrangement. The Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt and a 1-3/8 inch to 1-3/4 inch door thickness range, the same range the 4700LN version of the 4721LN covers. The Hager 2580 is also a Grade 2 storeroom cylindrical lock with a Withnell lever and a 1-3/8 inch to 2 inch range.
18) We need a lever that looks like the Accentra 4721LN Monroe trim on a door with no latch at all - what do I order?
For a non-operating leaf you want dummy trim rather than the 4721LN, which is a working keyed cylindrical lockset. The BEST 9K 1DT is a Grade 1 single dummy trim cylindrical lever, and the BEST 7KC 1DT is the Grade 2 medium duty equivalent. The Callan Bentley is a Grade 2 dummy lever, and Baldwin Estate 5103 half dummies are offered in left hand and right hand.
19) What is the alternative to the Accentra 4721LN if we want to stop issuing keys?
The 4721LN uses brass 6-pin keyed-random cylinders with two keys furnished, so every user carries a key. If you want code entry instead, the Lockey 2835 is a mechanical pushbutton keyless lever lock with a 1-3/16 inch to 2 inch door thickness range, the Lockey 2835DC adds a second combination, and the Lockey 1150 is a heavy duty mechanical keypad lever set covering 1-1/8 inch to 2 inch doors. The Delaney LP250 is an electronic keypad leverlock at Grade 2. None of these are a communicating double cylinder function, so the two-sided key control of the 4721LN is not reproduced.
20) We need access control on the same opening the Accentra 4721LN would go on - what takes its place?
The 4721LN is a mechanical lock with no electrical provision. For an electrified cylindrical lever on a comparable commercial opening, the Corbin Russwin CL33903 is a Grade 1 fail safe lever at 12VAC/DC with a 1-3/4 inch to 2 inch door thickness range, offered with the NZ lever and D rose and in a keyed 12VAC/DC version. Note the thicker door range compared with the 1-3/8 inch to 1-3/4 inch the 4700LN version of the 4721LN covers.
21) Which alternatives to the Accentra 4721LN come in a Schlage C keyway?
The 4721LN is furnished with brass 6-pin keyed-random cylinders; 7-pin is not available. If your building is keyed to Schlage C, the Cal-Royal AG series is supplied that way - the AG00 entrance lever is 6-pin Schlage C keyed different with a 2-3/8 inch backset and the AG03 classroom lever is 6-pin Schlage C keyed different with a 2-3/4 inch backset. The Arrow MK33 asylum lock also uses a conventional Schlage C keyway cylinder. Watch the backset: the 4721LN is 2-3/4 inch standard.
22) What finishes does the Accentra 4721LN Monroe lever come in?
Eight finish choices: 605 bright brass, 606 satin brass, 612 satin bronze, 613E dark oxidized satin bronze equivalent, 625 bright chrome, 626 satin chrome, plus BSP black suede powder coat and WSP white suede powder coat. The two powder coats are what you pick when you are matching painted storefront or modern black hardware across a property rather than a plated finish; 626 satin chrome is the usual commercial default.
23) What is the lock mechanism on the Accentra 4700 Series made of?
Heavy-gauge steel, die cast, zinc plated and chromated. The latchbolt itself is stainless steel with a 1/2 inch throw. That plating stack is corrosion treatment on the internal chassis, which is what keeps a Grade 1 cylindrical holding up in a warehouse, garage-adjacent, or coastal facility where interior humidity swings.
24) I want a decorative lever for a residential-style interior door instead of the Accentra 4721LN - what are the options?
The 4721LN is a commercial Grade 1 cylindrical lock with Monroe trim. For interior openings where appearance leads, the Baldwin Estate 5103 with 5048 rose comes in passage and privacy, the Deltana Claremont, Manchester, Morant and Linstead levers are entry function with the Manchester, Morant and Linstead covering 1-3/8 inch to 2 inch doors, and Bravura offers the Atlanta, Orlando and Miramar with round trim and the Tampa with square trim as Grade 2 passage leversets. These are not Grade 1 commercial sets, so they do not carry the 4721LN specification on a rated or heavy-traffic door.
25) The Accentra 4721LN is non-handed - are the comparable lever sets also non-handed?
Yes on several. The 4721LN is non-handed, so one part covers left and right openings. The Falcon B101 Grade 2 passage and Falcon K101 Grade 1 passage are both described with non-handed levers. By contrast, Baldwin Estate 5103 half dummies are ordered by hand, left or right, so you have to confirm the swing before you buy those.
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Does the Accentra YAL-MO-4721LN-626 come with a warranty?
Absolutely. The Accentra YAL-MO-4721LN-626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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