Large selection of replacement water filters, reverse osmosis membranes, testing kits and water filter system repair parts. From one water filter or membrane to case quantity discounts.

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Bruner L.P.R.O.1, DWS-1, DWS-2 Reverse Osmosis

Bruner L.P.R.O.1, DWS-1, DWS-2 Reverse Osmosis

Bruner Bruner L.P.R.O.1, DWS-1, DWS-2 Compatible Replacement Water Filters & Reverse Osmosis Membranes

3 Stage RO System - 2 vertical filter housings and one top mounted horizontal standard size RO membrane housing.

This system was sold in both CTA and TFC membrane configurations. Identifying the correct membrane will also tell you which pre filter to use. CTA membranes use a sediment only prefilter. TFC membranes use a carbon prefilter. CTA systems should not be used on non-chlorinated water. Upgrading your system from a CTA to a TFC RO membrane is easy to do, and we recommend the conversion. Manufacturers are discontinueing CTA (Cellulose TriAcetate) membranes so now is the time to convert if you have not already done so.  Just order the TFC membrane and carbon prefilter. This is also a good time to upgrade the GPD production rate of your system. Order any of the membranes shown and then order the matching flow restrictor.  The correct size flow restrictor will insure the correct operaton of the hydraulic pressure in the RO system.

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Easy TDS Membrane Performence Calculator
See If It is Time To Replace Your Membrane

Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS Rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.

See our selection of TDS meters under Water Tests


Be sure to check our Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system.   View maintenance and servicing tips online at our Installation & Trouble shooting Guide.


* Bruner ® is the registered trademark of Bruner, the manufacturer of Bruner ® brand water treatment equipment. The replacement filters and membranes listed above are not manufactured or endorsed by Bruner. Rather, these filters and membranes are manufactured by other companies. While these filters and membranes are compatible for use in Bruner ® brand water treatment equipment, we make no representation as to whether using these filters and membranes is consistent with the warranty and specifications applicable to Bruner ® equipment.