SKU: 39653677924

GVS 10496109 Wallerstein WL-DIFFERENTIAL 2mL Ampoules, 50 Pack

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Description

GVS 10496109 Wallerstein WL-DIFFERENTIAL 2mL Ampoules, 50 PackReady to use 2mL ampoule Wallerstein Broth (WL) is a liquid culture growth media that can save time and money by shortening prep time and minimizing possible contamination. The 2mL ampoules contain enough media to saturate a standard absorbent pad in a petri dish. WL Nutrient Broth is for the cultivation and enumeration of yeast and WL Differential Broth is for determination of bacterial count. Use of the medium at pH 5. 5 and incubation at 25C will

Ready-to-use 2mL ampoule Wallerstein Broth (WL) is a liquid culture growth media that can save time and money by shortening prep time and minimizing possible contamination. The 2mL ampoules contain enough media to saturate a standard absorbent pad in a petri dish.
WL Nutrient Broth is for the cultivation and enumeration of yeast and WL Differential Broth is for determination of bacterial count. Use of the medium at pH 5.5 and incubation at 25°C will give reliable counts for brewer’s yeast. Adjustment of the pH to 6.5 and incubation at 30°C allows for the selective growth of baker’s and distiller’s yeast.
Liquid Media
Ready-to-use media considerably reduce the preparation time in quality control laboratories and also effectively reduce the risks of cross contamination. GVS is cooperating closely with quality assurance managers in the industry in the development of its own media and test kits. This intensive product development has produced a range of products that is being used to monitor production plants and conduct Microbiological checks on raw materials through to final product release in laboratories in more than 40 countries.

Features:

Pre-Sterilized and Ready to Use
Time Saving, 2 mL Portions, Reduce Risk of Cross-Contamination.
2mL ampoules contain enough media to saturate a standard absorbent pad in a petri dish
Optimal media stability, sterility, and reproducibility
Less time-consuming, higher productivity
Batch-specific quality certificate in each pack, Confirms Reproducibility and Reliability

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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]
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SKU: 39653677924

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4.0 ★★★★★
Based on 21 reviews
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B
Verified Purchase
Brady Perry
Charlottesville, US
★★★★★ 5
My dog's favorite toy to date
Color: Blue
Heavy duty material that my dog has not destroyed. The vibrating ball inside is made of hard plastic, so beware if your dog likes to shake their toys, it definitely hurts to get whacked by this. The velcro keeping the ball inside is also heavy duty and takes a lot of strength to open. All in all, its a great toy and one of my dog's favorites.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
M
Verified Purchase
MandyMT
Carnegie, US
★★★★★ 3
Good enough.
Color: Blue
A little smaller than I thought and the battery doesn't last too long. But my puppy enjoys it enough. It is holding up well to her teeth as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
P
Verified Purchase
Pail
Louisville, US
★★★★★ 5
My dog loves this toy!
Color: Green
I was NOT expecting my dog to like this toy, but she loves it! The legs are stretchy and the body vibrates. The battery lasts about a month.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Great interactive toy. Worth the price.
Color: Blue
Our Lab absolutely loves it. She throws it all over the house. It’s so fun to watch her play with it. It’s by far her favorite toy right now. It’s easy to charge and came with charging cable. It has a button to turn off and on and a couple different speeds. My parents got her a different one for Christmas and since she loved it so much we decided to get her another one. It’s pretty durable too. She normally rips through toys pretty quickly and both of the ones she has are still in good shape. No rips or tears. She hasn’t tried just chewing on it like she does her squeaky toys. She just throws it all around the house and chases it.
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Reviewed in the United States on March 17, 2026
J
Verified Purchase
Jeremy Elston
Alexandria, US
★★★★★ 4
Fun, enticing dog toy. As stated in description it won’t hold up for aggressive chewers
Color: Blue
Rating this based on description. My dog loved this toy. It was smaller than I had pictured in my head, but that was on me. I did read the description ahead of time, which clearly states this is not for aggressive chewers. My dog is trained not to rip toys apart so I wanted to give this a shot, but i guess just her jaw strength and teeth were too much. She carried it everywhere. I turned it on periodically. The movements are small, but enough for her to be captivated with the toy. It did mostly survive for about a day before I needed to take it away due to the Velcro opening. Once it started to pull apart she did chew a piece of the Velcro off. It might be helpful with a flap over design covering the Velcro. I have a singing Santa decoration like this where the Velcro is covered up and I have to pull it back a little to get to the Velcro opening. The gaps on the sides of the closure are a bit to large making it tempt my dog to pull and open it up. I wish there was a more durable option that could hold up to aggressive chewers, but this product was clear about that in the description. I think the opening to the batteries could use some improvement. Granted I do not have the perfect answer to fix this, but I am also not a toy designer.
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Reviewed in the United States on April 19, 2026

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