


USphere Prime (C4F10)The Usphere Prime (C4F10) agents are plain microbubbles, containing perfluorobutane (C4F10) with a phospholipid shell. These agents are 1. 1 1. 4m in size, with a concentration of >2. 5x1010 microbubbles ml; each vial contains 0. 8ml. These agents are shipped at room temperature but may be stored at 2 8oC for up to 6 months. Once activated, using the UltraMix Agitator (a one time purchase) the microbubbles can be used for up to 3 days with >90%
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Your USphere Prime (C4F10) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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
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★★★★★ 5
this slipper is a big surprise for the price.better than i expected better fit .
Size: 10, Color: Tan
slippers are way better than what i thought they would be .for the price did not expect much but better fit and comfortable than a lot of walmart and target slippers and i have bought a ton of them in the years past.do the job for me had them little over 3 weeks and going to get another pair for this price nice slipper. Paul, Maryland. ps just wanted to add had slippers 2 months now broke in really nice very comfortable most dept store slippers have fallen appart buy now good buy for the price. Paul,Maryland.
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Reviewed in the United States on July 1, 2023
★★★★★ 4
sizing
Size: 3X-Large, Color: Chocolate
Good quality, warm, sizing was dificult. I normally wear a size 12 shoe so I ordered an x-large but it was way too small. they shipped a size 11. Amazon was great with their free returns. I now ordered a xxx-large and they fit perfectly. x-large=11 and xxx-large=13
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Reviewed in the United States on January 3, 2013
★★★★★ 5
Good deal
Size: 12, Color: Tan
True fit, slip resistant bottoms and comfortable.
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Reviewed in the United States on October 11, 2025
★★★★★ 3
Slippers are nice But
Size: 11, Color: Chocolate
Slipper are warm and soft. The problem is the soles leave marks on the
floor. Washed the soles, still marks everywhere on hardwood floors.
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Reviewed in the United States on October 26, 2023
★★★★★ 5
Very comfortable
Size: 3X-Large, Color: Chocolate
Ahhhh! I think I found my slippers! They are wide enough, long enough, sturdy enough and comfortable. I might even buy a second pair to have handy.
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Reviewed in the United States on February 6, 2024