Qingdao Sigma Chemical Co., Ltd (International, US, EU, Canada and Australia domestic

Those suck bro! Ive popped them numerous times making a mess. Get the pekybio ones mentioned here or get celltreat on ebay.
Good to know, I'll check those out. I ordered those from Amz, but haven't used them yet, and won't after the feedback, thanks. Heated gear and 3ml syringe worked fine with Whatman filters in the past.
 
didn't someone just say that they used that brand of syringe filters and it turned there product "cloudy"? Sometimes its better to use tried and true products instead of trying to find the cheapest deal,,,, And reinvent the wheel,,,
I didn't see the post, but yeah. I've used Whatman in the past no problems, then saw this deal, but haven't used them yet. I won't now, thanks.
 
That mother fucker will do that... this last hour has been the best interaction I've had here in a little while... everybodys been cool and respectful.. i have enjoyed the shit out of it
Dude its nice when its calm and not a tren raged interaction! @Ghoul please stop making us buy more crazy shit! But real talk you always know about the good shit! Just when I think Im getting something good you always have something wayyyy better! You definitely know your shit and respect! I have those stoppers for you my brother!
 
I
Pall Supor PES are the best for peptide filtration, but they don't seem to offer sterile PTFE that would be used for gear. Maybe someone could figure out which Pall filter membrane would be appropriate for oils. I just use the cobetter PTFE.
was wring it was the cobetter brand that was posted not the pall
 
There is a fine print on the cobetter website that's says customer is responsible for all customs and import duties.. can someone elaborate on that for me
 
Hate to keep asking so many questions. But when it specifies "Air venting" does that mwan it's made to where I will not have to use a vent needle.. ive never read thelar particular specification before....
I believe air venting just refers to one of the uses of a filter with ptfe membrane. They are sometimes used to pull moisture out of air as it passes through
 
@Dirthand

Ask whatever you want brother, that never bothers me.

Missed's answer is correct. PTFE is used to filter air vents on equipment requiring dry, sterile air.
You’re a good dude Ghoul. It’s nice you provide so much free information and harm reduction techniques. I appreciate the advice you’ve given me and my friends via PM and the time you’ve taken out of your day to help complete strangers. I misread you initially and I would like to publicly apologize for the mean and rude things I’ve said to and about you.
 
You’re a good dude Ghoul. It’s nice you provide so much free information and harm reduction techniques. I appreciate the advice you’ve given me and my friends via PM and the time you’ve taken out of your day to help complete strangers. I misread you initially and I would like to publicly apologize for the mean and rude things I’ve said to and about you.

No need to apologize brother. Somebody's gotta keep me humble lol
 
I have always done well with Millipore PVDF, works great with EO and Guaiacol (When I used a lot of TNE). You just have to adjust the temperature and psi.

Nylon sucks, worst of the 3, blows right up, clogs and gets slow. I have never tried PTFE.

Millipore got better years back when they started making them thicker, handles more heat and psi than it did years back. Years back they were much more available as well. They used to crack and leak.

Glass media bottle instead of that plastic junk and a brake bleeder pump, plastic pumps are garbage!
 

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