NexGen MAX

High Density Mouse

The lightest, most cost-effective, easiest-to-use animal-friendly IVC system in the LAS industry, now providing up to 20% more cage capacity in the same rack footprint.

  • 20% greater cage density within same rack footprint
  • Smooth sliding, easy gliding cage docking / undocking
  • Low vibration spares animals and staff from discomfort
  • Observation made easier and faster

More Room. In the Same Room.

With the cost of floor space increasing with each passing year, every research facility in the Lab Animal Science industry understands the need to maximize cage density within their vivarium. Enter NexGen MAX, the new Maximum Density IVC and Cage System from Allentown that increases cage density by 20% - using IVCs that are the same size and occupy the same footprint as our standard units. Available with automatic watering or with optional bottle, MAX IVCs accommodate both the NexGen MAX reusable cage system AND the EasyCage MAX disposable cage system. One rack, two cage types, many, many more cages. Just what you'd expect from Allentown, your Global Solutions Provider.

Easy Cage Removal

Smooth and easy sliding in, and the same sliding out...less stress and vibration for your animals and less repetitive motion strain on your staff... those are the benefits of NexGen's innovative plastic runner system. So innovative that the NexGen is changing the way animal care staff perform their wellness need to fully remove cages from the rack.

Quiet Operation

There's so little you'll hear when using a NexGen that it's easier to describe what you won't: no loud hum, no swirling fan, no air noise as it gets sucked into the blower intake... just quiet. Energy efficient ECM motors along with design expertise applied by Allentown airflow experts ensures you'll barely even notice that the blowers are on.


Lighter, easier to use, easier to move and manipulate, validated by an independent ergonomist. NexGen provides reliable protection for your staff and your animals. Reengineered to be stronger yet lighter, the NexGen uses less stainless steel and a combination of high-quality plastic materials to make the rack easier to work with.

Digital Content

The difference is in the details. Take a closer look.

Allentown solutions are not only crafted to perfection, they are also meticulously documented to provide users with all of the information needed to maximize their value. Take a closer look by reviewing the materials below.

Cage System with External Bottle Top
7.638 in x 5.669 in x 15.669 in
194 mm x 144 mm x 398 mm
Floor space: 81 in² | 523 cm²
Cage System with Micro Barrier Top
7.638 in x 5.669 in x 15.669 in
194 mm x 144 mm x 398 mm
Floor space: 81 in² | 523 cm²


250 mL
.62 lbs | 281 g (filled)
Item # PC250BCL + SLC250-200-NW¹


External Bottle Top
Available with or without locks
7.313 in x 4.173 in x 15.669 in | .95 lbs
186 mm x 106 mm x 398 mm | 431 g
Item # 232740-2
Micro Barrier Top
Available with or without locks
7.313 in x 2.087 in x 15.680 in | 1.20 lbs
186 mm x 53 mm x 398 mm | 544 g
Item # 232743-1


3 in x 5 in Vertical
Item # VH35P9-8
(also available in 3 in x 4 in)
3 in x 5 in Horizontal
Item # HH35P9-8
(also available in 3 in x 4 in)

WBL / Feeder

Half Pocket Wire Bar Lid
Food capacity: 376 g
6.683 in x 3.415 in x 8.328 in | .46 lbs
170 mm x 87 mm x 212 mm | 209 g
Item # 317274
Dual PFT with Stainless Steel Grate
Food capacity: 853 g
6.683 in x 3.338 in x 8.330 in | .45 lbs
170 mm x 85 mm x 212 mm | 204 g
Item # 230763-1
Single PFT with Stainless Steel Grate (Hydropac®²)
Food capacity: 426 g
6.683 in x 3.338 in x 8.259 in | .45 lbs
170 mm x 85 mm x 210 mm | 204 g
Item # 230764-1


Enrichment Loft
3.261 in x 2.710 in x 4.630 in | .10 lbs
83 mm x 69 mm x 118 mm | 45 g
Item # 316961-1
Safe Harbor Mouse Retreat™
2.520 in x 2.756 in x 4.488 in | .11 lbs
64 mm x 70 mm x 114 mm | 50 g
Item # BIO-K3583


NexGen MAX Cage
Automatic watering available
7.638 in x 4.173 in x 15.000 in | 1.21 lbs
194 mm x 106 mm x 381 mm | 549 g
Item # 232822-1 (without automatic watering - shown above)
Item # 232822-2 (with automatic watering)

All component data shown above are accurate as of publication date, but are subject to change without notice. Please consult with your Technical Sales Consultant before ordering to ensure accuracy.

Click here to learn about the chemical resistance of the medical-grade specialty polymers used in our caging.
¹Shorter sipper tube may be required - currently under evaluation.
²The feeder/watering device is approved by Hydropac/Lab Products, Inc. for use with Hydropac® branded valves and pouches.
NexGen T-99 cage top filters are not dry heat sterilization compatible. A dry heat compatible filter can be provided.
All dimensions shown are Width x Height x Depth.

Colony Health Monitoring


Allentown and Charles River Laboratories have partnered together to develop the Exhaust Air Dust collection methodology — or EAD®. Available in two configurations, neither system requires the use of soiled-bedding sentinel animals, but instead captures and samples aggregate exhaust air from IVCs using a patented collection media that attracts dust particles but doesn't load like a filter, or impact airflow.

Learn More

Sentinel™ EAD®: US Patent 10,575,495 B2, Canadian Patent 2,987,625. Sentinel2™: US Patent 11,510,391 B2, Canadian Patent No. 3,101,445. Sentinel is a trademark of Allentown, LLC. EAD is a registered trademark of Charles River Laboratories, Inc.
Airflow Solutions

Industry leading airflow solutions.

The EcoFlo family of blowers are the most energy efficient, ergonomically friendly, and quietest blowers we've ever produced. Offered in a wide variety of solution friendly configurations - including rack mounted, wall mounted, ceiling mounted and free-standing tower - these blowers share the same efficiencies, ease of use, superior control, and dependability that are the hallmarks of all Allentown products.

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