iSpring Alkaline RO System
iSpring RCC7AK-BN NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink Patented Top-Mounted Faucet Design for Easy Installation
Paid affiliate link. As an Amazon Associate we earn from qualifying purchases.
Bryan Johnson filters his water with reverse osmosis plus remineralization and says similar systems cost about $300, brand unnamed. iSpring's 6-stage under-sink RO adds minerals back.
Reasons to Choose It
- It covers the carbon, reverse osmosis, and remineralization stages his protocol lists, though not the mixed-bed deionization stage in his own system.
- His May 2026 home post says to make sure a reverse osmosis system includes a remineralization step, which this one does.
- At around $200 it costs less than the roughly $300 he quotes for similar systems, and it is NSF/ANSI 58 certified.
Worth Knowing
- Under-sink reverse osmosis needs a cold-water line, a drain connection, and space for a tank; check your sink first.
- Reverse osmosis sends some water down the drain, and filters need regular replacement, which adds ongoing cost.
- Test your water first; his protocol uses a SimpleLab lab test to see what is in it.
Before You Buy
Our Amazon link goes to the exact iSpring Alkaline RO System listing tied to Bryan Johnson's sources, so you don't end up with a lookalike.
- Last Checked Price
- $211.49 (October 2026)
- Merchant
- Amazon
- Rating
- 4.6 from 21,671 customer ratings
- ASIN
- B005LJ8EXU
- Category
- Wellness
- Sources
- 2 public sources linked above
Buying Notes
- Amazon shows the live price, coupons, and any subscription discount at checkout.
- The listing's ASIN is B005LJ8EXU, if you want to match it on Amazon.
- The sources above show how Bryan Johnson uses it.
Common Questions
What water filter does Bryan Johnson use?
His protocol describes an alkaline filtration system that cost about $1,300, with carbon filtration, a reverse osmosis membrane, mixed-bed deionization, remineralization with coral calcium, and a coconut carbon stage. He does not name the brand and says similar systems cost about $300.
Why does Bryan Johnson remineralize his water?
In his May 2026 post on changes to his home, he says reverse osmosis drops dissolved solids from over 300 mg/L to about 25 mg/L, and to make sure the system includes a remineralization step for electrolyte balance.
Why is iSpring Alkaline RO System on ProtocolPicks?
Because a public Bryan Johnson or Blueprint source names or shows it, and those sources are linked on this page. Commissions don't decide what we list, and the listing is based on those sources, not on a hands-on review or an endorsement.
Where can I buy iSpring Alkaline RO System?
On Amazon. The Check Price button on this page opens the exact listing tied to the sources here. It is a paid Amazon affiliate link, at no extra cost to you.
How much does iSpring Alkaline RO System cost?
It was $211.49 on Amazon when we last checked, in October 2026. Amazon shows the live price, coupons, and shipping.
What should I check before buying iSpring Alkaline RO System?
Compare the size, serving count, and label on Amazon with what you need, and read the sources here to see how Bryan Johnson uses it. This page is not medical or professional advice.
Brand
iSpring
Merchant
Amazon
How We List Products
We add a product when a public Bryan Johnson or Blueprint source names or shows it, and link that source on its page. Prices and ratings come from the merchant and can change.
Complete this part of the protocol
Other picks from the same routines and brand, plus the guides that cover them.