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PuROTwist 4000 RO Filter Replacement Kit with 50 GPD Membrane

Name: ESP Water PuROTwist 4000 RO Filter Replacement Kit with 50 GPD Membrane - PuROTwist 4000 RO Filter Replacement Kit with 50 GPD Membrane
Brand: ESP Water
SKU: 43671971496117
Price: 160.68 USD
Availability: InStock
Rating: 4.8571 (7 reviews)

4.5 (1,234)

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Color

Black

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1-Year Filter Replacement Kit for PuROTwist 4000 with 50 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-...

Reviews

4.9

7 ratings

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Very helpful staff

john · 10 days ago

Only two key points.

They output clean water and they don’t leak. What else can I say about these things? They do what they’re supposed to do. As for installation, nothing you do working in a under the sink cabinet is fun! But if you compare replacing these to replacing a garbage disposal, then yeah sure, these are pretty easy. Just be sure you have a container to put underneath them and plenty of rags to catch and wipe up all the water that’s going to spill out when you remove them.

Robert · October 14, 2025