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Description
Eppendorf Innova® U535Overview When it comes to maximizing sample storage capacity, Eppendorf Innova ULT freezers set the standard. These lab freezers like the Innova U535 take advantage of ultra efficient, ultra compact vacuum insulation panels which are used in combination with traditional insulation to slim down the freezer wall thickness from 130 mm to 80 mm. These models are ideal for labs short on space. Freatures: Vacuum insulation panels allow for increased
Overview
When it comes to maximizing sample storage capacity, Eppendorf Innova ULT freezers set the standard. These lab freezers like the Innova U535 take advantage of ultra-efficient, ultra-compact vacuum insulation panels which are used in combination with traditional insulation to slim down the freezer wall thickness from 130 mm to 80 mm. These models are ideal for labs short on space.
Freatures:
- Vacuum insulation panels allow for increased internal capacity with the same footprint as traditionally foamed freezers
- Inner doors are gasketed as well as insulated creating 3 separate compartments minimizing cold air loss while you access your samples
- Easy-to-read, eye level, flush mounted LED control panel and alarm status
- Each shelf is adjustable in height for additional storage flexibility
- Special vacuum vent with plunger ergonomically located at waist level to gain immediate access to your freezer
- Inner doors can be quickly removed without the need for tools for easier and faster defrosting
- Full stainless steel interior for easy cleaning during maintenance and defrost cycles; powder-coated steel exterior
- Special low-temperature outer door seals allow gaskets to remain flexible at –86 °C and prevent ice buildup for easy access to samples
- Password protection of alarm and temperature setpoints to prevent unauthorized setting changes
Applications:
ULT freezers are suitable for storage and preservation of all types of biological materials/samples:
- Bacteria
- Cells
- Spores
- Pollens
- Protozoa
- Blood components
- DNA
- Tissue used in research only
- Preservation of chemicals or material testing components for a longer period of time
Key attributes
| Min. Temperature | -50°C to -86°C |
| Cubic Feet | 18.9 |
| Alarms | Yes |
| Controls | Digital |
| Defrost | Manual |
| Electrical | 115V, 60 Hz (or 208-230V) |
| Warranty (years) | 5 |
| Weight (lb) | N/A |
| Width (in) | 31.5 |
| Depth (in) | 34.1 |
| Height (in) | N/A |
Manufacturer Specifications
| Model | Innova® U535 | Innova® U535 |
|---|---|---|
| Cooling liquid | R404A / R508B | R404A / R508B |
| Cooling type | air-cooled | air-cooled |
| Heat output | 720 W | 720 W |
| Insulation | Vacuum insulation paneling / polyurethane foam | Vacuum insulation paneling / polyurethane foam |
| Capacity | 535 L | 535 L |
| Capacity (ft3) | 18.9 ft³ | 18.9 ft³ |
| No. of internal doors | 3 | 3 |
| No. of compartments | 3 | 3 |
| Max. racks per freezer | 12 | 12 |
| Noise level | 56 dBA | 56 dB |
| High-Efficiency | no | no |
| Power supply | 115 V, 60 Hz | 208 – 230 V, 60 Hz |
| Max. power consumption | 13,200 W | 13,200 W |
| Footprint (WxD) | 80 x 86.7 cm | 80 x 86.7 cm |
| Temperature range | -50 °C to -86 °C | -50 °C to -86 °C |
| Pull-down time to -80 °C | 4 h1 | 4 h1 |
| Box capacity per freezer | ||
| 53 mm (2 in) tall boxes | 336 | 336 |
| 64 mm (2.5 in) tall boxes | 288 | 288 |
| 76 mm (3 in) tall boxes | 240 | 240 |
| 102 mm (4 in) tall boxes | 144 | 144 |
| 127 mm (5 in) tall boxes | 144 | 144 |
| DWP per freezer | ||
| 10 cm (4 in) tall boxes | 504 | 504 |
| Box capacity per rack | ||
| 53 mm (2 in) tall boxes | 28 | 28 |
| 64 mm (2.5 in) tall boxes | 24 | 24 |
| 76 mm (3 in) tall boxes | 20 | 20 |
| 102 mm (4 in) tall boxes | 12 | 12 |
| 127 mm (5 in) tall boxes | 12 | 12 |
| DWP | 42 | 42 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Durable, fun, and safe for my dog
Size: 10.5 inch Rubber Flex Tread
I have a 10 month old, 50 lb mutt who has the musculature of a pit bull and the muzzle of a GSD. Buttercup’s favorite past-time is shredding toys into teeny tiny bits, but sometimes those bits don’t come back out of her mouth. She can’t have tennis balls, stuffies, anything with a squeaker, silicone toys, plastic toys, rubber toys with spikes or small appendages, anything with rope, or most chews & bones. She chewed her first and only $8+ XL bully stick like a corn chip. Finding indoor enrichment is a challenge. Buttercup is extremely pleased with this tire tug thingy, it is very ergonomic for both her and me to get a handle on it, it has more movement than any other toy she can safely have, and it’s very durable. After more than a week, there’s only a little bit of tread missing, which is definitely the best-case outcome with a super chewer. I think this is a good alternative to GoNut toys because it’s solid & dense while also a little bit easier & more interesting to play with, and very unlike GoNuts, this Tonka toy is very reasonably priced. I also think this it’s a good size for almost any breed of dog—I could definitely picture a little Boston or Frenchie dangling from one end. Highly recommended!
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Reviewed in the United States on December 20, 2024
★★★★★ 5
Dog loves it
Size: 10.5 inch Rubber Flex Tread
I would buy this again and again. It’s extremely durable and has held up great with my 9 month old Saint Bernard puppy. We even call it his “pacifier” because every night he grabs it and chews on it until he falls asleep. Definitely a favorite in our house!
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Reviewed in the United States on March 20, 2026
★★★★★ 4
Tough toy, but the yellow tire broke at the seam
Size: 10.5 inch Rubber Flex Tread
It was fun while it lasted and it got a lot of use, but it finally gave out after 6+/- months? Great tug toy. My dog is a 70# mutt with a strong bite and he's chewed through pretty much every other toy he's ever had. This one lasted longer than any of the others by quite a bit. He did zero chew damage to the tires, but the yellow tire in the middle broke at the seam. No tear, the seam just came undone at 90 degree angles. I'm going to look for something else this time but this wasn't bad considering how long it lasted and it wasn't very expensive. If I don't find anything tougher, I may purchase another one of these down the road.
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Reviewed in the United States on March 18, 2024
★★★★★ 1
Not for tough chewers at all!!!
Size: 10.5 inch Rubber Flex Tread, Size: 10.5 inch Rubber Flex Tread
5 minutes in and it's destroyed. Very disappointing.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Great chew toy
Size: 10.5 inch Rubber Flex Tread
This is my second time buying the Tonka rings. My dog loves this chew toy. It does take him a bit to destroy them. I give this toy to him as a reward otherwise it be destroyed in 3 days. I have a pitty. So other dogs it should last longer. They are shin whackers and hurt when they connect. So I make sure to watch the dog and toy around small kids and elderly to be safe. They are heavy and made well.
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Reviewed in the United States on October 29, 2025
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