This BPA-free, 2-quart jar with an easy-open lid features all the unique Blendtec advantages!

Features include:

  • Square shape
  • Patented single-prong, cold-forged wingtip blade (nearly 3")
  • Easy-to-read jar markings up to 32 fl oz or 4 c (with a total volume of nearly 2 qt)
  • Shorter and half the weight of competitors' jars with comparable volume
  • Durable, BPA-free copolyester that stands up to heavy use
  • Ergonomic design, allowing for easy 3-way pouring
  • Easy-open Gripper lid that allows ingredients to be added through the center opening and that vents pressure when blending hot liquids
  • Nearly 3" blade
  • Compatible with all Blendtec consumer blenders
  • 3-Year Warranty

  • Dimensions: 7" wide x 9.5" tall x 7" deep
  • Actual weight: 1.5 lbs (0.68 kg)
  • Shipping weight: 3 lbs (1.36 kg)
  • 3-Year Warranty
FourSide Jar is rated 4.2381 out of 5 by 21.
Rated 3 out of 5 by from good jar This is a good jar (the 4-side jar), I bought it to replace an older one that had many miniscule scratches in it and now stains easily. I will still keep the old as a back up, but it's nice to have a new, clean-looking jar again. The jar performs great, and I like the new lid (with easy access port), but I would REALLY like the option of buying either a stainless steel jar or a glass jar from Blendtec. If you guys at Blendtec ever get a glass or stainless steel option, I'll definitely buy one!
Date published: 2014-10-07
Rated 4 out of 5 by from Liked old lid better I had to get a replacement blender jar as the old one started to leak after 600 uses. When i got the new jar, i noticed the lid is not completely closed and it comes apart in two pieces. This is harder to clean this way. The jar handle also is not solid its hollow so stuff can get stuck on inside of it. Im noticing the blades just are not fully blending frozen bananas in smoothies n i have to pulse it a few times after the cycle is done.
Date published: 2014-09-05
Rated 3 out of 5 by from Grinding sugar into powder I love the blend! Just wish you had a feature that I could use to help me grind my sugar into powder. It does a fantastic job except now the container leaks causing the plastic on the bottom around the impeller melted. Due to the friction in the grinding process because the sugar is so hot when grinding. Is there a container that can help me grind my sugar? It's one of the key ingredients in my chocolate business. Please help me. I only had the blender for few years maybe 2 years and just start my business a year and I already need a new container.
Date published: 2014-08-19
Rated 5 out of 5 by from Love the Four Side Jar! I bought my Blendtec with the Wildside Jar on sale at Costco last year and, while I have loved the operation of the blender, sturdiness and ease of cleaning, the bigger jar wasn't designated for some of the recipes and smaller amounts I wanted to use. Since getting the Four Side jar, I find I use it all the time with all the recipes I want!
Date published: 2014-07-30
Rated 2 out of 5 by from I got a replacement because my jar was leaking The new one maker so much noise that I am sure there is something wrong with it I would appreciate if you send me another one Besides I don't think I should have been charged for the replacement since that problem is a flaw in the design I like the blender but it is becoming a problem
Date published: 2014-06-28
Rated 5 out of 5 by from Perfect smoothie maker! We received our much anticipated Four Side jar a few days ago, and have used it nearly every day to make smoothies. It works nearly flawlessly, and I say nearly only because if you add too much frozen and solid ingredients, it will fail to blend without tamping down the mixture. This has only happened twice, however, and with a quick tamp, a perfectly blended concoction emerged!! Love this blender, an this Four Side jar!!
Date published: 2014-07-06
Rated 2 out of 5 by from Nice....but the larger one is better I bought the Wildside a couple of years ago and I thought I would get the smaller jar as my replacement. It's nice but I prefer the Wildside jar. It's larger and easier to clean.
Date published: 2014-10-25
Rated 4 out of 5 by from Improved from original I have had this replacement for over 4 months and it is performing well. I like the improved top with the larger pop out which allows for stirring. I think the gasket issue needs to be work on more, but no issues with that as yet.
Date published: 2014-06-28

What is best way to clean off caked on build up on inside of jar?  Soaking in soap and hit water does not work. 

Asked by: Deano
We suggest a product called "Lemmy Shine". It will remove build-up on the inside of the blending jar safely. You can find it in most grocery stores on the dish detergent isle.
Answered by: mreed
Date published: 2014-10-27

I dropped a spoon in my jar and didn't know it until I started the blender. The jar now leaks. Can this be fixed? 

Asked by: Robert
The jar will need to be replaced. You may call Customer service for assistance 1-800-253-6383 or new jars are available at
Answered by: Sedwards
Date published: 2014-10-23

Sir/Mam  Will  this jar be fitted for model Blendtec ES-3 XPRESS ?

Asked by: Sunil
Yes, this jar will work great with your machine.
Answered by: Sedwards
Date published: 2014-10-23

we have one of your wonderful blenders, we have two square jars, both the seals have broken at the base and the blades are loose, is there a repair for that or do I just need to by new ones.  We have had them for over 6 years so I am sure no warranty

Asked by: Sheroxx
If your jars are out of warranty, then yes, you will need to purchase new ones. I do recommend that you call in first, just to double check the warranty on your jars. 800.748.5400.
Answered by: Blendtec
Date published: 2014-10-23

The rubber o-ring on the bottom of my blender jar, is it replaceable or do you have to replace the whole jar?

Asked by: Yvonne McElheny
The whole jar will need to be replaced. Depending on when you purchased it, your jar may still be under warranty. Please call 800.748.5400 to see if your jar is still under warranty.
Answered by: Blendtec
Date published: 2014-10-23

Hello, I would like to buy the fourside replacement jar and need to know the weight and dimensions of the packaged box please.

Asked by: jason427
The dimensions of the box are approximately 7" wide x 9.5" tall x 7" deep, and it weighs 3 pounds.
Answered by: Blendtec
Date published: 2014-10-14

what's parts number on fourside-jar?is it will fit any model?

Asked by: song
Yes, the FourSide jar fits all of our blender bases.
Answered by: BlendtecJess
Date published: 2014-10-27

Will all the recipes that call for wide side work with this jar

Asked by: Pathill3
Yes, all recipes will work in this jar. There may be an occasion where you'll have to cut down the recipe as this one is a little smaller than the WildSide jar.
Answered by: BlendtecJess
Date published: 2014-09-22