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Old 16-09-2018, 19:23   #1
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Generic Watermaker membranes

Some time ago, a member posted a website for reasonably priced RO membranes (I was searching for an alternative to paying Katadynís kingís ransom for an old PUR). In the end, I decided to just dump the PUR since Katadyn no longer supports PUR machines beyond selling expensive membranes.

As luck would have it, I deleted the website a month ago and today my dock neighbor asked about a source for membranes.

Anyone have a source?

Thanks.
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Old 16-09-2018, 20:34   #2
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Re: Generic Watermaker membranes

Amazon.com search for filmtec sw30-2540, $218
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Old 16-09-2018, 21:53   #3
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Re: Generic Watermaker membranes

Filmtec is a division of Dow. They make all the desalination membranes. There are many dealers.

Be sure you are buying desalinating membranes, and then the diameter and length are the only variables.
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Old 17-09-2018, 00:24   #4
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Re: Generic Watermaker membranes

Applied Membranes in Vista California rolls their own membranes to match the "screw you" special size requirements of Parker/Village Marine/HRO

Here is their sales site
http://www.wateranywhere.com/membran...ter-membranes/
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Old 21-09-2018, 12:07   #5
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Re: Generic Watermaker membranes

Amazon or ebay are the best places I've found for membranes and filters, both generic and brand name.
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Old 23-09-2018, 19:21   #6
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Re: Generic Watermaker membranes

Unfortunately, as far as I know at this point, the PUR/Katadyn membranes are only made by Katadyn and yes they are proprietary and pricey.
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Old 23-09-2018, 20:12   #7
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Re: Generic Watermaker membranes

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Originally Posted by Tellie View Post
Unfortunately, as far as I know at this point, the PUR/Katadyn membranes are only made by Katadyn and yes they are proprietary and pricey.
I can assure you that Katadyn is not a big enough company to be manufacturing their own R/O membranes. The sizes and fittings sure look like a match for standard Dow Filmtec membranes.

Are you SURE they are proprietary? Or do they just tell you to "only use genuine, etc,etc."

Spectra is now owned by Katadyn, and I KNOW those are industry standard membranes.
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Old 23-09-2018, 20:15   #8
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Re: Generic Watermaker membranes

Made by, and have made for them, to their specifications are different, but in effect the same, as itís sole sourced.
So your probably right, they donít actually make them, but the people that do, wonít sell to you.
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