Midwest PET Carboys vs Better Bottle Carboy

[Magic8Ball]

Is there any difference? I can't really see one and the buy one get one free deal at midwest supply is a great deal. Has anyone ever used one? Please comment.


From Midwest email:
Enter promo code FREEPET at checkout
when you have any two identical PET carboys in your cart,
and receive one for free! Offer valid 48 hours only, ends at midnight on 06/1/13. Offer valid with 5 and 6 gallon PET Midwest carboys in stock, while supplies last.

 

[Magic8Ball]

Well asked and answered... there was a thread out there and a nice answer from Revvy https://www.homebrewtalk.com/f39/midwest-pet-carboy-vs-better-bottle-378428/