Replacement Microcore Insert for Lava Buns - Click to enlarge
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Replacement Microcore Insert for Lava Buns
Our Price: $9.99
In stock. Ships by next business day.
Free Shipping On orders of $49 or more.

Average Customer Rating:
(4.5 out of 5 based on 8 reviews)

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Item # 21130
Manufacturer # 110 90 14040

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Replacement Microcore element measures 10" x 14" and fits Vesture Lava Buns.

Do Not Use Microcore Element By Itself!

  • Easily heated in your microwave or cooled in your refrigerator or freezer
  • Safer than gel; filled with non-toxic liquid
  • Distributes the heat or cold evenly
  • Extremely durable, FDA-approved flexible outer film can withstand over one ton of pressure!
  • Can be placed in any type of container for continued heating or cooling
  • One-Year Limited Warranty
MICROCOREŽ is a family of unique patented formulations developed by Vesture Corporation that can be made hot or cold depending on how the formula is produced and which product it is used in.

MICROCOREŽ seat cushion heating elements are activated by a microwave. Once the product is heated or chilled, it can maintain a heated or cooled temperature for hours. MICROCOREŽ technology provides the solutions you need to keep anything hot or cold for long periods of time.

Product Reviews

5  , May 6, 2014
Posted By: n

Summary: very useful. i use it for a heating pad too!

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5  , February 24, 2013
Posted By: Ric

Pros: heavy duty, thick, easy to heat and holds heat for several hours.

Summary: Ordered these to replace the heating units in my Lava Buns units. They work even better than the original units. I am very happy with these.

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4  , October 21, 2012
Posted By: Paul

Summary: came in just a few days

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5  Lavabuns, April 5, 2012
Posted By: Patti

Summary: I love it! Customer service was excellent. It came so quickly

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2  lava bun leaks, February 11, 2011
Posted By: Debrodgers
2 people found this review helpful

Summary: I was not happy with my lava bun replacement core. I heated it one time, for three minutes, took it to my chair, sat on it, and it leaked. My seat and my pants were wet...and I'm not a big person either... :o(

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5  Replacement for Lava Buns, January 28, 2011
Posted By: Lisa P

Summary: I was so pleased to be able to find the replacement core without having to rebuy the enitre unit. Kitchen Kapers offered a terrific price and very timely delivery. I'll definitely keep them in mind for future purchases.

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5  readhead, November 17, 2010
Posted By: Howard Jones
1 people found this review helpful

Summary: Excellent product - Excellent seller

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5  Lava Buns, November 15, 2009
Posted By: Cindy H.
3 people found this review helpful

Summary: This is my second set of Lava Buns in 10 years. They are fantastic. I have stadium chairs that have pockets to place the lava buns in, I stay nice and toasty for a whole football game even when it is very cold (30 degrees)

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Our Price: $9.99
In stock. Ships by next business day.
Free Shipping On orders of $49 or more.
Item # 21130
Manufacturer # 110 90 14040
Add to Gift Registry
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