Product review (1 stars): we don't recall encountering anything like this! We contacted Seneca both with text and ...
<a data-hook="product-link-linked" class="a-link-normal" href="/TRUE-Canning-Burner-Universal-Plug-in-Electric-8-34-Element-Fits-Many-Brands/dp/B00EOYMG82/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">TRUE Canning Burner, Universal Plug-in Electric 8" Element, Fits Many Brands</a>
This canning burner has at least three problems:
1.  It doesn't actually fit because the support triangle below is too thick.
2.  Seneca ships it in a USPS bubble-wrap envelop so it gets damaged in the mail.
3.  If you bend the element back, as Seneca recommends, the red insulation around the element cracks.
4.  Part of the mounting was not assembled correctly, or the spot welds were broken.
By the way, in about 15 years of trading on Amazon, we don't recall encountering anything like this!  We contacted Seneca both with text and pictures and their reply was that we should bend the element back and that all the mountings are like that!

We bought the canning burner to be stout, so expect it to be fully-assembled and unbent to start with!  Attached are pictures, which hopefully, will let you decide for yourself whether you want one of these!  (At least as Seneca gets them!)

So we are sending it back!  Always inspect when you get a product!