Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter $399

Spideym8

Mar 28, 2026 3:05 AM

336 Comments

Joined Sep 2018

Spideym8Mar 28, 2026 3:05 AM

336 Comments

Anyone had any experience with this?

1

euhenius

Mar 28, 2026 3:45 AM

241 Comments

Joined Jul 2017

euheniusMar 28, 2026 3:45 AM

241 Comments

Quote from Spideym8

:

Anyone had any experience with this?

I'm using G3P800 for 2 years already. No issues. My family loves it.

2

Nukleus2

Mar 28, 2026 4:02 AM

64 Comments

Joined Apr 2018

Nukleus2Mar 28, 2026 4:02 AM

64 Comments

Quote from Spideym8

:

Anyone had any experience with this?

I have this model for the past 2 years. Easy to install. My TDS went from mid 500s to low 20-30s. Works well, no issues.

2

shawtydat

Mar 28, 2026 3:03 PM

164 Comments

Joined Dec 2009

shawtydatMar 28, 2026 3:03 PM

164 Comments

Quote from Spideym8

:

Anyone had any experience with this?

I have this exact model from 11/2025. changed from ispring tank system. much better output if you drink a lot of water. In hindsight, I'd consider the gp800 for even higher output. tap is about 250-300 tds and the system gets it down to a consistent 5-10 tds. the filters are wasteful compared to other systems like the ispring.

1

UniqueSoda2365

Mar 28, 2026 3:41 PM

732 Comments

Joined Sep 2019

UniqueSoda2365Mar 28, 2026 3:41 PM

732 Comments

Quote from shawtydat

:

I have this exact model from 11/2025. changed from ispring tank system. much better output if you drink a lot of water. In hindsight, I'd consider the gp800 for even higher output. tap is about 250-300 tds and the system gets it down to a consistent 5-10 tds. the filters are wasteful compared to other systems like the ispring.

I dont care about highest output (I think), but ive read the 800 has UV sterilization and remineralization.

Seems the the average price on this is $430, so not a super deal - but just wanna get something that is good. Im on well water btw.

1

surfer9

Mar 28, 2026 3:42 PM

341 Comments

Joined Nov 2006

surfer9Mar 28, 2026 3:42 PM

341 Comments

Quote from shawtydat

:

I have this exact model from 11/2025. changed from ispring tank system. much better output if you drink a lot of water. In hindsight, I'd consider the gp800 for even higher output. tap is about 250-300 tds and the system gets it down to a consistent 5-10 tds. the filters are wasteful compared to other systems like the ispring.

Can you explain what you mean by "the filters are wasteful compared to other systems like the ispring"

Thanks.

4

k1ngkev1n1

Mar 28, 2026 6:05 PM

3.8K Comments

Joined Oct 2010

k1ngkev1n1Mar 28, 2026 6:05 PM

3.8K Comments

Quote from surfer9

:

Can you explain what you mean by "the filters are wasteful compared to other systems like the ispring"Thanks.

Maybe he is referring to water waste?

k1ngkev1n1

Mar 28, 2026 6:06 PM

3.8K Comments

Joined Oct 2010

k1ngkev1n1Mar 28, 2026 6:06 PM

3.8K Comments

Quote from Spideym8

:

Anyone had any experience with this?

Have this for few years love it and filters super easy to change. No real complaints.

Charlotte123.pm

Mar 28, 2026 6:44 PM

18 Comments

Joined Jul 2015

Charlotte123.pmMar 28, 2026 6:44 PM

18 Comments

Quote from Spideym8

:

Anyone had any experience with this?

I am using it over 4 years and it's amazing

StrongHome4917

Mar 28, 2026 10:04 PM

165 Comments

Joined Oct 2019

StrongHome4917Mar 28, 2026 10:04 PM

165 Comments

Can I split it and tap to my fridge line too?

CoralSquirrel431

Mar 28, 2026 10:32 PM

10 Comments

Joined May 2020

CoralSquirrel431Mar 28, 2026 10:32 PM

10 Comments

Quote from StrongHome4917

:

Can I split it and tap to my fridge line too?

Yes, you need Waterdrop PMT Small Water Pressure Tank to get to a fridge water dispenser or ice maker. I am using this for a seltzer system that has a tank inside a fridge to feed the system

cleared

Mar 29, 2026 3:34 AM

118 Comments

Joined Dec 2016

clearedMar 29, 2026 3:34 AM

118 Comments

I have 2 of these, the first one came in and it had a small leak, contacted them and they said package it back in the box, keep the filters and they had a new one at my door steps the next day. Highly recommend the G3! I know tds isnt everything but at both houses the tds is below 7.

GimpsUnlimited

Mar 29, 2026 5:27 AM

472 Comments

Joined Jan 2017

GimpsUnlimitedMar 29, 2026 5:27 AM

472 Comments

Quote from Spideym8

:

Anyone had any experience with this?

I have it installed in my home for 3 years and my parents' home for a year. Excellent. Love the display on the faucet. Filter change is super easy. Doesn't waste water and take up massive space like the old RO system.

Veilside67r1

Mar 30, 2026 12:06 AM

229 Comments

Joined Oct 2020

Veilside67r1Mar 30, 2026 12:06 AM

229 Comments

Dumb question since I know very little about plumbing. If I already have a tee in my cold water line that goes to the fridge. So how would I hook up the RO filter if there is already a tee in the line?

SmartHill5061

Mar 30, 2026 8:18 PM

151 Comments

Joined Sep 2021

SmartHill5061Mar 30, 2026 8:18 PM

151 Comments

I have another model G5P700, which is 700GPD model while this one is 600 GPD, filterwise G5p only takes two filter in total, versus this one is three. so depending you wanna little better filtration, or go for more cost wise. for TDS wise, before it was hitting 150-200TDS, after filt it usually stays in between 3-9TDS. so i am happy with my G5P700. and plus, it is higher GPD where it drops water faster than 600 models.

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Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter $399

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