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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
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Description
Culture Tube Closures – Stainless SteelMORTON Culture Tube Closures . The stainless steel cylindrical closures are excellent for microbiology and related applications. Non contaminating closures may be autoclaved repeatedly without loss of resilience. The indentations on the top surface permit adequate exchange of gasses under aerobic and anaerobic conditions, yet prevent dust and micro organisms from collecting at the top. These noncorrosive closures reduce the amount of specimen
MORTON® Culture Tube Closures . The stainless steel cylindrical closures are excellent for microbiology and related applications. Non-contaminating closures may be autoclaved repeatedly without loss of resilience. The indentations on the top surface permit adequate exchange of gasses under aerobic and anaerobic conditions, yet prevent dust and micro-organisms from collecting at the top.
These noncorrosive closures reduce the amount of specimen evaporation to about half of that of cotton plugging. These closures are available with or without three resilient fingers which permit adjustment to nominal variations in the O.D.
- Stainless steel, noncorrosive closure
- With or without three resilient fingers
- Laboratory glass joint safety clamp
- Ball socket chemical apparatus locking clamp
- Vacuum glassware retention clip
- Stainless steel lab joint securing clamp
Used for:
- secure spherical (ball-and-socket) glass joints
- stabilize reflux/distillation setups
- prevent joint separation under heat/vacuum
Specifications
| Part No. | Description | Qty/Pk | Finger |
| 13144CL | 13 mm Lanced Closure | 144 | Yes |
| 16144CL | 16 mm Lanced Closure | 144 | Yes |
| 18144CL | 18 mm Lanced Closure | 144 | Yes |
| 20144CL | 20 mm Lanced Closure | 144 | Yes |
| 25072CL | 25 mm Lanced Closure | 72 | Yes |
| 38036CL | 38 mm Lanced Closure | Discontinued | - |
*38036CL HAS BEEN DISCONTINUED*
| Part No. | Description | Qty/Pk | Finger |
| 13144UL | 13 mm Plain Closure | 144 | No |
| 16144UL | 16 mm Plain Closure | 144 | No |
| 18144UL | 18 mm Plain Closure | 144 | No |
| 20144UL | 20 mm Plain Closure | 144 | No |
| 25072UL | 25 mm Plain Closure | 72 | No |
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
4.6 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 4
Perfect for Our Nervous Rescue Dog
Size: Large, Color: Green
First Impressions
I bought the Pupsicle for our new rescue dog who was very nervous whenever we had to leave the house. Right out of the box it felt sturdy and well-made, and I liked that it wasn’t just another cheap chew toy.
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Setup & Ease of Use
I went with the premade treat inserts to start, which made it super simple — just pop one in and hand it over. It’s also dishwasher-safe, which is a huge win for me since I don’t want to deal with scrubbing peanut butter out of toys.
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Performance in Real Life
She loves it. The Pupsicle has kept her occupied and calm, which has really helped her acclimate to her new home. Instead of pacing or whining when we leave, she settles down with this toy and stays busy.
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Pros & Cons
Pros:
• Helps reduce anxiety for nervous dogs
• Very durable and solid
• Easy to clean (dishwasher safe)
• Premade inserts make it effortless
Cons:
• On the heavier side, so probably best for medium+ dogs
• Inserts are convenient but add a little extra cost
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Who It’s For
Perfect for new dog owners, rescues, or anyone with a dog who needs a healthy distraction when left alone.
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Final Verdict
The Pupsicle has made a noticeable difference for our rescue pup. It’s durable, easy to use, and has genuinely helped her feel more at ease in her new environment. Highly recommend.
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Reviewed in the United States on August 24, 2025
★★★★★ 3
Dogs love it, hard to open and close
Size: Large, Color: Pink, Size: Large, Color: Pink
My dogs love this toy. It keeps them entertained a long time. Great calming toy for when you leave the house. Only issues is it is very hard to open and close. One of mine I had three people try to open and after fighting with it for about an hour I finally got it opened. Got 2, one a blue and pink one for each of my dogs. The blue is easier than the pink but still hard to do. Just not as bad. Can't close the pink all the way because it is so hard to close. The dog that uses it has trouble getting the stuff out of it. But it doesn't stop her from trying for hours to do so. Does get some teeth marks on it as well if they are aggressive chewer. Tried multiple eatable lubricating substances to try to make it easier but so far nothing fully worked. Aloe Vera has worked the best so far, but not great.
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Reviewed in the United States on February 17, 2026
★★★★★ 3
Good in theory, but didn’t fully deliver
Size: Large, Color: Green, Size: Large, Color: Green
My dog falls right on the size cutoff between the small and large Pupsicle. I initially ordered the large since he’s a strong chewer, but he had trouble getting everything out, so I ended up trying the small as well.
There are definitely some positives. I think the design is better than a Kong. It stays upright, which makes it less messy. I also really like the mold for making the inserts, instead of having to fill the toy itself and freeze it.
That said, there are two major design issues that impacted my experience. First, the all-rubber construction creates a lot of friction when screwing the bottom into the base, especially after repeated use. It gradually became harder to open, to the point where I was using coconut or avocado oil to try to loosen the threads. At one point I even needed a wrench and pliers just to get a better grip.
Second, while it’s marketed as dishwasher safe (which I was excited about for cleaning), it seems to dry out the rubber and makes the threading issue worse over time.
Unfortunately, mine is now permanently stuck shut and no longer usable. Overall, I like the concept, but the durability and usability issues make this a 3-star product for me. I’d recommend it with caution, especially if you plan to wash it frequently.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Aussie Approved
Size: Large, Color: Blue
I got a knock off one of these originally and man I should have just stuck with the real thing. My dog destroyed the other one in about 4 seconds. My dog loves this one and has not been able to tear it up, he prefers to just push it around after he gets all the treat out of it which is hilarious to watch. The quality is amazing and it is so easy to clean without leaving a smelly odor on it. It fits in my freezer perfectly and also is soft but firm so I do not have to worry about my dog hurting his teeth. For reference I have an Aussie and I got the large one which is perfect for his size (60lbs). My pet prefers this one over the last one for sure since this one actually keeps him entertained.
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Reviewed in the United States on June 13, 2026
★★★★★ 5
Awesome enrichment toy!
Size: Large, Color: Green, Size: Large, Color: Green
These are awesome! My dogs love them and keep them occupied for 30-60 mins so I can make and enjoy my coffee in peace before work. They are very easy to clean, but as others have mentioned, they can get stuck. I had to take a pliers to get one of them unscrewed. Hopefully that’s not a constant issue. I do wish they were more durable since there were a lot of teeth marks in them after the first use, so I upgraded to the black super chewer one. I’m happy I gave these a try and feel they are worth the money, especially for high energy dogs who get bored easily.
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Reviewed in the United States on June 4, 2026
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