BEST Precision 2603 Series Con...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,216.00
$2,316.07
BEST Precision 2603 Series Concealed Vertical Rod Exit Device with Key Retracts Latchbolt

BEST Precision 2603 Series Concealed Vertical Rod Exit Device with Key Retracts Latchbolt

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Model: 2603 628 36
$3,216.00
$2,316.07
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,216.00
$2,316.07
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BEST Precision 2603 Series Concealed Vertical Rod Exit Device with Key Retracts Latchbolt

Professional Grade 1 Exit Device for Commercial Applications

The BEST Precision 2603 Series delivers Grade 1 certified performance for narrow stile concealed vertical rod applications. This universal exit device accommodates doors up to 4'-0" wide by 10'-0" high with standard 1-3/4" thickness, featuring a deadlocking 3/4" throw top latchbolt and independent 5/8" throw bottom bolt. UL listed for both panic and fire exit hardware applications with ANSI/BHMA Grade 1 certification for demanding commercial environments.

Professional Features & Benefits

  • Door Compatibility: Designed for 1-3/4" thick doors up to 4'-0" wide by 10'-0" high for versatile commercial applications.
  • Grade 1 Performance: ANSI/BHMA certified Grade 1 rating ensures reliable operation in high-traffic commercial environments.
  • Deadlocking Security: Stainless steel top latchbolt with 3/4" throw provides secure deadlocking action for enhanced security.
  • Independent Bottom Bolt: Steel plated bottom bolt with 5/8" throw and adjustment range accommodates 3/4" door undercut variations.
  • Heavy-Duty Construction: Investment cast steel chassis with zinc dichromate finish and heavy wrought brass, bronze, or stainless steel components for long-term durability.
  • Universal Design: Non-handed configuration with add-trim functionality allows flexible installation and future modifications.
  • Fire Safety Compliance: UL listed for fire exit hardware applications meeting critical life safety requirements.
  • Adjustable Installation: Lock-in-place top and bottom latch adjustors accessible through door after installation for precise field adjustment.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Exit Devices and Trim
  • Product Group: Exit Devices and Trim
  • Product Subgroup: Exit Devices - Vertical Rod
  • Product Type: Exit Devices - Concealed Vertical Rod
  • Series: 2600 Series
  • Subcategory: Concealed Vertical Rod

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 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 BEST Quality?

BEST Precision 2603 Series exit devices deliver professional-grade reliability with investment cast steel construction and heavy wrought metal components rated for Grade 1 commercial performance. UL listed for both panic and fire exit hardware applications with ANSI/BHMA certification. Engineered for demanding commercial applications where dependable performance and code compliance are essential.

Product Specs

Series:
2600 Series
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Devices - Vertical Rod
Product Type:
Exit Devices - Concealed Vertical Rod
Subcategory:
Concealed Vertical Rod
Commercial/Residential:
Commercial
Product Category:
Exit Devices and Trim
Department:
Door Hardware

BEST 2603 628 36 – Frequently Asked Questions

1) Do I need a mullion between a pair of doors if I use the Precision 2603?
No mullion needed. A concealed vertical rod device latches at the head and at the threshold rather than into a strike on the jamb, so it secures each leaf of a pair independently. That is the main reason to pick this over a rim device, which needs a keyed removable mullion on a pair. The top latchbolt throws 3/4 inch and the bottom bolt throws 5/8 inch.
2) Does the Precision 2603 need to be ordered handed?
The device itself is non-handed, so one part number works on a left or right hand opening. Handing only enters the picture if you add lever trim: then you specify RHR (right hand reverse) or LHR (left hand reverse). Order the device only and you skip the handing decision entirely.
3) Can I get the Precision 2603 fire rated for a stairwell or corridor door?
Yes. Rating is a required choice at order: non-rated (standard) or fire rated. The device is UL listed for both panic hardware and fire exit hardware. Note that fire rated exit hardware cannot be dogged down, so if you order it fire rated do not plan on holding the latch retracted during business hours.
4) Should I order the Precision 2603 less bottom rod (LBR)?
LBR is a required yes or no at order. Choosing yes removes the bottom rod and bottom bolt, so the door latches only at the head. That is what you want where the floor is uneven, where a threshold or carpet fouls the bottom bolt, or on a door that gets dragged through debris. Keep the bottom rod for full two-point latching: the bottom bolt throws 5/8 inch and adjusts to take up 3/4 inch of door undercut variation.
5) What size Precision 2603 do I order for a 36 inch door versus a 42 inch door?
Two device sizes are offered, 36 inch and 48 inch. The 36 inch device covers doors up to 3 feet wide; anything wider, up to the 4 foot maximum door width, takes the 48 inch device. Exit device sizing follows door width, not door height, and the device covers doors up to 10 feet high.
6) How does the BEST Precision 2603 compare to a Von Duprin 3347A or Falcon 1690 concealed vertical rod?
All three are Grade 1 narrow stile concealed vertical rod devices for 1-3/4 inch doors. The difference is function. The Von Duprin 3347A-EO and Falcon 1690EO are exit only, meaning no outside operation at all. The 2603 is a key retracts latchbolt device that accepts lever trim, so you get keyed or lever entry from outside. If you only need people out and nobody in, an exit only device is the simpler order.
7) The doors are thicker than 1-3/4 inch - what concealed vertical rod device fits?
The Precision 2603 is built for 1-3/4 inch thick doors. Where the door is thicker, the DORMA 9100 Series is a Grade 1 heavy duty wide stile concealed vertical rod pushpad device listed for 1-3/4 inch to 2-1/4 inch doors, and the DORMA 9600BB Series covers the same 1-3/4 inch to 2-1/4 inch range in a narrow stile pushpad, 36 inch. Both are non-fire-rated, so measure the door thickness before the rated opening is specified.
8) The opening is a wide stile hollow metal door - can the BEST Precision 2603 be used, or is another device required?
The Precision 2603 is built for narrow stile concealed vertical rod applications, so a wide stile hollow metal opening is a different device. The Adams Rite 8500 Series is a Grade 1 concealed vertical rod exit device for hollow metal doors in a wide stile configuration, non-fire-rated. If that same hollow metal opening is a fire door, the Adams Rite 3600 Series is the fire-rated Grade 1 wide stile concealed vertical rod device, and the 3900 Series carries a 1-1/2 hour rating.
9) What is the closest narrow stile concealed vertical rod alternative to the BEST Precision 2603 if the specification calls for a Von Duprin device?
The Von Duprin 3347A-3ft is a narrow stile concealed vertical rod exit device from the 33/35 Series, Grade 1, for 1-3/4 inch doors, in a 36 inch size. The Precision 2603 is likewise a Grade 1 narrow stile concealed vertical rod device for 1-3/4 inch doors, offered in 36 inch and 48 inch sizes. The difference to check on the drawing is fire rating: the 3347A-3ft is non-fire-rated, while the 2603 can be ordered Non-Rated or Fire Rated. If the opening is a fire door, the 3347A-3ft will not satisfy it.
10) Which concealed vertical rod device should be used on an exterior aluminum storefront door where no key function is needed?
The Precision 2603 is a key retracts latchbolt device, so the cylinder function is part of what is being paid for. Where the door only needs to open from the inside, an exit only device covers it: the Falcon 1690EO is a Grade 1 narrow stile concealed vertical rod exit only device for 1-3/4 inch doors in a 3 ft length, and the Falcon 24-C is a Grade 1 narrow stile exit only device in 36 inch. The Adams Rite 8600 Series is a Grade 1 narrow stile concealed vertical rod device made specifically for aluminum doors.
11) The classroom doors need to be lockable from outside with a key while still allowing free egress - does the BEST Precision 2603 do that or is a classroom function device needed?
The Precision 2603 is a key retracts latchbolt device, which means the key pulls the latch to allow entry rather than changing the outside trim state. Where the specification calls out classroom function by name, the Sargent 12-MD8613 is a fire-rated Grade 1 concealed vertical rod exit device in the 8600 Series with classroom function, in a wide stile configuration. Confirm which function the door schedule actually calls for before ordering either one.
12) Can a concealed vertical rod exit device be ordered without the bottom rod, and which products offer that?
Yes. The Precision 2603 offers an LBR less bottom rod option, ordered Yes or No, alongside its standard independent bottom bolt. The Von Duprin 3347A-EO is a Grade 1 narrow stile concealed vertical rod device supplied exit only less bottom rod for 1-3/4 inch doors. Less bottom rod is chosen where floor conditions, thresholds or carpet make a bottom strike impractical; confirm the fire rating requirement, since less bottom rod is handled differently on rated openings.
13) What does key retracts latchbolt mean on the BEST Precision 2603, and can I add outside lever trim?
Key retracts latchbolt means a cylinder on the outside pulls the latchbolt back for entry, so you get keyed access without a lever. The 2603 also accepts add-on trim, with four lever styles offered: 2903A, 2903B, 2903C, and 2903D. You can also buy it device only and add trim later, since the design allows trim to be added after the fact.
14) What is the difference between hex dogging and cylinder dogging on an exit device, and which should I order?
Dogging holds the touchbar depressed so the door pushes open freely. The 2603 offers hex dogging as standard, which needs an Allen key, cylinder dogging, which uses a keyed cylinder so only keyholders can dog the door, and less dogging for openings where you never want the latch held back. Schools and retail usually want cylinder dogging so staff use their existing key; a back-of-house door is fine with hex.
15) Which finish of the Precision 2603 holds up on an exterior door?
Ten finishes are offered: 605 bright brass, 606 satin brass, 612 satin bronze, 613 satin bronze oil-rubbed, 622 matte black, 625 bright chrome, 626W satin chrome weatherized, 628 satin aluminum, 630 satin stainless steel, and 690 statuary dark bronze. For an exterior opening, 626W is the weatherized satin chrome, and it pairs with the WTS and WTDS weatherized monitoring switches. 628 satin aluminum is the usual match for clear anodized aluminum storefront.
16) Is the BEST Precision 2603 Grade 1, and what does that mean for a high traffic building entrance?
ANSI/BHMA Grade 1 certified, which is the heaviest commercial rating and the one specified for high traffic and institutional openings. Construction backs it up: an investment cast steel chassis with zinc dichromate finish, a stainless steel top latchbolt, a steel plated bottom bolt, and heavy wrought brass, bronze, or stainless components. It is also UL listed for panic and fire exit hardware.
17) Can I adjust the latches on a Precision 2603 after the door is hung, without taking the device apart?
Yes. The top and bottom latch adjustors lock in place and are reachable through the door after installation, so you can dial in latching if the door sags or the frame moves without pulling the device off. The bottom bolt's adjustment also absorbs up to 3/4 inch of variation in door undercut, which is the usual reason a concealed rod device stops latching at the threshold.
18) Will the Precision 2603 latch into my existing top strike, or do I need to change the header prep?
The top latchbolt is a deadlocking stainless steel bolt with a 3/4 inch throw, and the bottom bolt throws 5/8 inch. Concealed vertical rod devices are not a like-for-like drop-in across brands, so plan on the strike and rod prep matching this device rather than reusing what is in the header. If you are trying to keep an existing prep, a same-series replacement is the safer route than swapping brands.
19) What is the difference between a touchbar concealed vertical rod device like the BEST Precision 2603 and a crossbar device?
The Precision 2603 is a touchbar device - its electrical options are described as touchbar monitoring switches and it takes hex, cylinder or less dogging. Crossbar concealed vertical rod devices in the same narrow stile Grade 1 class include the Von Duprin 5547-3ft in the 55 Series, the Von Duprin 7547-3ft in the 75 Series, and the Corbin Russwin ED7800 in the ED7000 Series, all for 1-3/4 inch doors. Crossbar is chosen where the building already standardizes on that look; the actuation is the visible difference, not the rod arrangement.
20) Is the Falcon 1491DT an equivalent to the BEST Precision 2603 on a pair of doors?
No - the Falcon 1491DT is dummy trim. It is a narrow stile concealed vertical rod device in the 1490 Series with a 9970 pull, Grade 1, for 1-3/4 inch doors, but its function is dummy, meaning it does not latch or retract anything. The Precision 2603 is an operating device with a deadlocking 3/4 inch throw top latchbolt and an independent 5/8 inch throw bottom bolt. On a pair, the 1491DT is what goes on the inactive leaf alongside an active device, not a replacement for one.
21) Which concealed vertical rod device takes lever trim like the BEST Precision 2603?
The Precision 2603 accepts add-trim and offers 2903A, 2903B, 2903C and 2903D lever trims, with handing specified RHR or LHR when a lever is chosen. Among Grade 1 narrow stile concealed vertical rod peers, the Corbin Russwin ED4800 is listed as exit only, accepts trim, on 1-3/4 inch doors, and the Corbin Russwin ED7800 accepts operator trim. The Sargent MD8613F-LTRIM is a Grade 1 heavy duty concealed vertical rod device supplied with lever trim, sized 36 inch by 84 inch with hex dogging.
22) What concealed vertical rod option is there for a door with a wide range of stile widths across the building?
The Precision 2603 is a narrow stile device for 1-3/4 inch thick doors up to 4 feet wide by 10 feet high. Where stile widths vary across an opening set, the CRL Jackson 1285 push pad concealed vertical rod panic exit is listed for narrow, medium or wide stile and is exit only. The CRL Jackson 1085 Series is a 48 inch non-handed concealed vertical rod panic device, wide stile, also exit only. Neither accepts key entry, so they suit doors where entry is handled elsewhere.
23) Is the Falcon 1990EO a match for a 48 inch opening instead of the BEST Precision 2603?
The Falcon 1990EO is a Grade 1 narrow stile concealed vertical rod device for 1-3/4 inch doors in a 44 inch exit only size, from the 1990 Series. The Precision 2603 covers 36 inch and 48 inch sizes and retracts the latchbolt by key. On a 48 inch door leaf the 1990EO at 44 inch is the closer device width, but it is exit only, so any door needing key entry from the outside is a different specification.
24) I'm standardizing exit hardware across a campus. Can the Precision 2603 cover both rated and non-rated openings with one series?
Yes, and that is the reason to standardize on it. The same 2603 device covers non-rated and fire rated openings, 36 and 48 inch door widths, doors up to 4 feet wide by 10 feet high, dogged and less-dogging configurations, and electrified or alarmed variants, all in one non-handed platform. Ten finishes let you match existing hardware building to building while keeping one part family for your stockroom and one set of adjustment procedures for your maintenance crew.
How fast can I get the BEST 2603 628 36 delivered?
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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 BEST 2603 628 36 come with a warranty?
Absolutely. The BEST 2603 628 36 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 BEST 2603 628 36?
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