matt pavao
Member
- Joined
- May 29, 2012
yeah I tried that with the magnet didn't stick to the tubes but it did to the flanges an the tubes also have some type of coating on them.
means their stainless... but for sure are not ATR .. and I do not think they are KB either.. possibly hooker ? or other vendors
What makes you think they're not ATR? They certainly have the correct form/factor. And even KB copied ATR in their later designs.
KB had a bunch of spin off variants
Even as ATR evolved there were a few small design/style changes that can sometimes make it a little difficult to identify them.