We've had a mountain of these on order from AeroTech for quite some time now. However, but the prospects of that being fulfilled anytime soon doesn't appear likely based on past conversations with AT. Things could always change of course, so who knows....They use to be sold in different lengths, which were 8" and 3.5". The ones with the longer lead wires were quite a bit more expensive. I don't think a person can find any for sale now. I just checked Apogee and they don't even list them anymore. I just checked Qwest on-line and I was unable to add them to the shopping card (They are probably out of stock.).
Yes. In 2014 the former pres. of Quest mentioned the then upcoming pyrogen formula change.I had a few from 4-5 years ago and they were 100% reliable.
Some I obtained a couple years ago have been kinda sketchy in the BP clusters I use them for.
Has there been a change?