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Rat Cage – Optirat® Plus

Our Largest, Multi-Level Rack System for Rats

Optirat Plus IVC rack system provides multi-level housing for rats and other large rodents. This spacious rodent cage allows the housing of larger groups and fewer single animals. The wide interior enables additional intra-cage enrichment like shelters and allows rats to express natural behaviors, as well as to stand upright, enhancing well-being. The mezzanine increases floor space and adds complexity to the cage environment.

Optirat Plus combines our proven motor-free, exhaust-ventilated technology and high-density carousel design with improved ease of use and maintenance. The feeder is located near the rear of the cage for improved visibility of animals, and the water bottles are externally located to allow changing without opening cages.

  • Large, multi-level cages; increased height and floor space
  • Mezzanine adds complexity and more living space
  • Ultra-high density
  • Large enough to house rats, hamsters, gerbils, guinea pigs, deer mice, and wild-caught rodents
  • Also suitable for invertebrates
  • External water bottles
  • Integrated cage card holder
  • Flat-bottom cage bases
  • Fits through standard 36″ door with cages removed
  • Optional automatic watering options
  • Extra cage height and special accessories optimize housing for rats with implants
  • Many components are available to support specialized models

Same operating principles as all Animal Care Systems racks

  • One-­pass, low-­velocity airflow with total volume air changes
  • No electric motors, no energy consumption
  • No noise or vibration
  • Prevents release of odors and allergens in the animal room
  • Superior cage visibility
  • Fast and easy cage filter replacement
  • Easy and low cost to maintain
Included Caging
Houses 30 rat cage assemblies with filters, feeders, cage cards, and water bottles (if so configured); available in polycarbonate and amber polysulfone
Rack Dimensions with Cages
41.0 in. (1042 mm) L x 39.7 in. (991 mm) W x 78.0 in. (1981 mm) H
Rack Only Dimensions
39.7 in. (1009 mm) L x 33.7 in. (856 mm) W x 78.0 in. (1981 mm) H
Airflow Requirements per Rack
82 CFM (39 liters/sec) recommended, 55 CFM (26 liters/sec) minimum per rack
Rack Weight
505 lbs (229 kg) with cages; 500 lbs (227 kg) with autowater
Rack Casters
Four 4-inch swivel casters; two locking, two non-locking
Cage Outside Dimensions
15.3 in. (389 mm) L x 22.4 in. (569 mm) W x 10.3 in. (262 mm) H
Cage Floor Area
183 square inches (1181 sq cm); 244 square inches (1574 sq cm) with mezzanine
Cage Capacity
Without mezzanine: 2 rats 500 g or heavier; 3 rats 400-500 g; 4 rats 300-400 g; 6 rats 300-200 g; 8 rats 100-200 g With mezzanine: 3 rats 500 g or heavier; 4 rats 400-500 g; 6 rats 300-400 g; 8 rats 300-200 g; 10 rats 100-200 g
Cage Material
Amber polysulfone or polycarbonate
Cage Feeder
Capacity: 37 oz (1,100 mL); polished stainless steel
Cage Water Bottle
Capacity: 16.9 oz (500 mL); polysulfone or polycarbonate
Cage Enrichment
Optional mezzanine that adds 61 in²

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