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PRF RO Membrane

Original price was: £210.00.Current price is: £189.00. Incl. VAT

-10%

Our PRF RO Membranes are the same genuine Pentair TLC-350 membranes supplied with the PRF reverse osmosis system (formerly known under GE as the Merlin). Featuring a bespoke design these membranes are unique to the PRF and Merlin range, with a low minimum operating pressure of 2.8 bar. To maintain system performance, membranes should be changed every 1-3 years depending on the quality of feed water.

Product Features
  • Same original membranes supplied with the PRF RO
  • Genuine Pentair TLC-350 RO membranes
  • Operating pressures as low as 2.8 bar
  • Flow rates up to 1lpm at 10⁰C
Product Compatibility

These membranes feature a unique size, suitable for use with the PRF RO system. The PRF requires two membranes to operate, so changing in pairs is recommended to ensure optimal performance. These membranes should only be used with the Pentair PRF RO System which is available to purchase separately if required.

Help & Advice

Need help or advice on which size to choose? No problem, drop us an email, start a live chat or give us a call on 01622 933 853 and we’ll be sure to help.

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PRF RO Membrane
PRF RO Membrane
£210.00 Original price was: £210.00.£189.00Current price is: £189.00. Incl. VAT
SKU: PRF-TLC350 Category: Tag:

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PRF RO Membrane
PRF RO Membrane
£210.00 Original price was: £210.00.£189.00Current price is: £189.00. Incl. VAT
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PRF RO MEMBRANES

Pentair TLC-350 RO Membranes

These genuine Pentair TLC-350 RO membranes are a unique size compatible with the Pentair PRF-RO system only (formerly known under GE as the Merlin). They are easy to change with no tools required. The PRF-RO is a best-selling reverse osmosis system manufactured by Pentair – popular for on-demand pure water applications at low pressure including window cleaning, car detailing, aquatics and drinking water.

How Long Do The Membranes Last?
These membranes should be replaced on average every 1-3 years, however please note that the functional life of an RO membrane varies greatly depending on the quality of the feed water. The lower your input TDS the higher the expected lifespan of the membrane.

Why Choose Our PRF RO Membranes?

  • Easy to change high performance RO membranes
  • Unique size bespoke to the Pentair PRF RO system
  • Popular for direct flow applications
  • Operating pressure 2.8 to 5.5 bar
  • Average rejection rate of 93%

Compatible Products:
Pentair PRF RO System
PRF Pre/Post Filters

Genuine Pentair Products

We’re pleased to offer a range of genuine products from Pentair as a market-leading supplier of water treatment equipment. Can’t find exactly what you’re looking for? Get in touch with a member of our team today.

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Additional Information

Brand

Suitable For

Pentair PRF RO System
Merlin RO System

Permeate Flow

1 Litre Per Minute

Max Operating Temperature

38⁰C

Min Operating Pressure

2.8 Bar

Max Operating Pressure

5.5 Bar

Max Feed TDS

2000mg/l

Average Rejection Rate

93%


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Pete Cossar
7 October 2026
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Very pleased with the service. There was an issue with the water softener I ordered initially, but then following communications made the replacement process quite pleasant. Happily recommend this company. Thanks to Becky for working with me. Great follow up support 😊😊😊
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Michael Fey
2 October 2026
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Very Pleased with the services from the Sales Team
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Guy Brennan
26 September 2026
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First time using this company and product and i wasnt dissappointed. Communication was easy and quick resulted in an easy order and now having fitted the filter i can say its a great product easy to install and appears good quality apart from the four mild steel bracket screws stainless would have been better considering the environment these are fitted. All in all, very pleased and would highly recommend .
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Graham Quinn
25 September 2026
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Easy to order and fast delivery
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Steve Griggs
14 September 2026
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Excellent local company and genuinely lovely people to deal with. Really helpful and knowledgeable, with great advice about my water softener and the correct salt to use. They even gave me some resin cleaner at no charge, which was a very kind gesture. Fantastic friendly service and I’ll definitely be returning for my salt in future. Highly recommended.
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Don Carless
7 September 2026
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Excellent service. Product proved my softener was not working as it should. I fully serviced it and cleaned with Resin Clean returned to service and it is now working as designed. Very pleased.
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J P
27 August 2026
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If you're thinking about a water softener then i HIGHLY recommend Ultra Soft Water Softeners Ltd. Great softeners and exceptional customer service. The water softener I bought needed some adjustments with the installation setup where I supported throughout. The customer service is honestly next level. I had countless calls with Becky Gillett, the Sales Manager, over a period of months to get to the bottom of it. She was incredibly patient with me, staying on the phone and doing video calls to walk me through the programming instructions step-by-step while I changed the settings and ensured all was installed correctly. All the staff here have been great, but Becky really stuck with me from start to finish to make sure it was sorted and working well. It runs like a dream now. HIGHLY recommend them!
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Chris Collins
26 August 2026
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Easy to order, good prices and delivered on time. What more can you ask for.
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John L
26 August 2026
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Good rapid & efficient service
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Tony Hybel
17 August 2026
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Easy to order, quick delivery, good communication. Resclean worked a treat; one treatment cycle and soft water is back again from our 12 yr old softener!