SKU: 25501703853

PuROTwist 4000 RO Filter Replacement Kit with 36 GPD Membrane

Sale price$140.11 Regular price$155.68
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

PuROTwist 4000 RO Filter Replacement Kit with 36 GPD MembraneFilter Replacement Kit for PuROTwist 4000 with 36 GPD TFC Reverse Osmosis Membrane and FREE Replacement O Rings INCLUDES: STAGE 1 1x Sediment Pre Filter (Q5605) Replace every 6 12 months or as needed STAGE 2 1x Carbon GAC Pre Filter (Q5633) Replace every 6 12 months or as needed STAGE 3 1x RO Membrane TFC 36 GPD (TQ56 36FC) Replace every 24 months STAGE 4 1x Carbon GAC Post Filter (Q5633) Replace every 6 12 months or as needed O RINGS FREE Replacement

Filter Replacement Kit for PuROTwist 4000 with 36 GPD TFC Reverse Osmosis Membrane and FREE Replacement O-Rings

INCLUDES:

  • STAGE 1 - 1x Sediment Pre-Filter (Q5605) - Replace every 6-12 months or as needed
  • STAGE 2 - 1x Carbon GAC Pre-Filter (Q5633) - Replace every 6-12 months or as needed
  • STAGE 3 - 1x RO Membrane TFC 36 GPD (TQ56-36FC) - Replace every 24 months
  • STAGE 4 - 1x Carbon GAC Post Filter (Q5633) - Replace every 6-12 months or as needed
  • O-RINGS - FREE Replacement O-rings for Filter Heads (4x H-118 and 4x H-011)

We offer two replacement filter kits so you can get exactly what you need — and avoid paying for filters you don’t.

  • Year 1 Kit found on this page (Includes RO Membrane):
    Ideal for your first full replacement, this kit includes all filters plus the RO membrane, which typically lasts up to 24 months.

  • Year 2 Kit (Without RO Membrane):
    After the first year, you only need to replace the pre- and post-filters, since the RO membrane is still good for another year. This kit helps you save money while keeping your system performing like new.

*Filters may need to be replaced more often than indicated, depending on water contaminant levels and volume of water being treated.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 25501703853

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4.2 ★★★★★
Based on 722 reviews
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sylvia
Louisville, US
★★★★★ 5
Good pillow case
Color: Dark Grey, Size: 1 Pack Body(20x54)-Regular
It’s a nice soft pillow case. Fits perfectly on my body pillow
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Reviewed in the United States on May 18, 2026
M
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MJ
Draper, US
★★★★★ 4
Cooling and comfortable against your skin
Color: Navy Blue, Size: 1 Pack Body(20x54)-Regular
Fits perfectly and feels nice against your skin. Just wish it had a zipper on the end. That would have made it perfect.
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Reviewed in the United States on June 8, 2026
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Verified Purchase
LegoDude
Phoenix, US
★★★★★ 5
I am stunned
Color: Black, Size: Queen(20x30)
I had no idea what to expect from these. But for as cheap as they were I was willing to just write it off of they weren't that good. I had already picked up a new memory foam pillow to replace my previous memory foam pillow that didn't do well with dissipating heat. This new pillow was fine by itself, but when I put my pillowcase on it, the properties that made it cooling were negated. I'd get a bit of sweat on the side of my head or my neck where it was against the pillow all night. The pillow was supposed to be a cool one, but the pillowcase was not. So I grabbed this set. Smooth, no loose threads anywhere, stitching and seams are all spot on. And it's smooth to the touch. Got it on the pillow, and as soon as I laid my head down on it, I could tell immediately that this was going to be a different result that my other one. Not nearly as warm even after laying on it for a while. No heat buildup, no bits of moisture on the skin after being on it all night. This definitely works well, especially with my cool sleep pillow. Now I can have a far more comfortable nights sleep. For the price, it's a steal. I have no idea what longevity will be, but with two of them, I'm sure I'll get more than my money's worth.
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Reviewed in the United States on August 7, 2023
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Verified Purchase
Mary Hales
New York, US
★★★★★ 5
Soft and cooling
Color: Dark Grey, Size: 2 Pack Queen(20x30)-Regular
Soft, not too thick and wash very well. Feels great against my skin and doesn’t make my hair frizzy. Color was perfect.
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Reviewed in the United States on May 13, 2026
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Issyr
Boise, US
★★★★★ 3
Not soft, not wrinkle free
Color: Light Grey, Size: 2 Pack King(20x36)-Regular, Color: Light Grey, Size: 2 Pack King(20x36)-Regular
Not as soft as expected. Major WRINKLED after washer/dryer. Always use max heat on dryer. Not as described. Money wasted.
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Reviewed in the United States on April 30, 2026

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