MESO-Rx
Anabolic Steroids
Ordering top filters online
- Thread starter fanoftren
- Start date
You have any links? I’m from europe
If you're in the UK this listing should do it for you: Sterile Top Filter Cup Bottle Filtration Vacuum Driven Fast Flow PES PVDF NYLON | eBay
Just make sure you select Nylon, PES membranes won't work with BB.
Just make sure you select Nylon, PES membranes won't work with BB.
Thanks alot! I also contacted someone on alibaba, a bottle top filter producer and they told me for BB and BA its best to use pvdf and not nylon. While ppl on here tell that nylon is best. What could be the reason of that?
Someone here posted a "Filterware/Chemical Resistance for Membranes and Housings" guide a while back. In that guide nylon is given a satisfactory rating for both BB and BA, whereas PVDF receives a satisfactory rating for BA, but only a marginal rating for BB. So you can definitely use a PVDF filter for small batches, but you need to be aware that it may fail sooner than intended. Also, some types of filter membranes can be broken down by the BB/BA in the solution being filtered. I've never used PVDF membranes, but if I did I would check the appearance of my filtered solution, if it looks cloudy it could be that components of the membrane have found their way down into your media bottle.
As far as to why a bottle top filter producer may recommend PVDF over nylon membranes I can't say for sure. Since most bottle top filters used for homebrewing are used to filter less than 1000ml of solution it may be that he/she has determined PVDF to be perfectly adequate. It could also be that the company has better profit margins when selling the PVDF membranes as opposed to the nylon ones. You never really know what peoples' motivations are.
I attached a copy of the guide here and would give credit to the original poster, but I can't seem to find the thread where it was posted.
As far as to why a bottle top filter producer may recommend PVDF over nylon membranes I can't say for sure. Since most bottle top filters used for homebrewing are used to filter less than 1000ml of solution it may be that he/she has determined PVDF to be perfectly adequate. It could also be that the company has better profit margins when selling the PVDF membranes as opposed to the nylon ones. You never really know what peoples' motivations are.
I attached a copy of the guide here and would give credit to the original poster, but I can't seem to find the thread where it was posted.
Thanks for your very detailed reply man, appreciate it. I will ask the seller and show them this file. Lets see why he thinks pvdf is better
silntrunin
Member
Why would you order bottle top filters from China if your worried about customs?
I can't see where it would be a problem but since your woriied get someone with an Amazon account and have them order them and have them delivered in two days.
A case of 24 filter tops 500ml for around $130. That's a great price for domestic.
