How long can I keep these filter in storage

Not really sure -- we've had ours for a year (bought them at the time we bought the system) and so far so good.

I am considering this unit for my 2nd home and expect to use sparingly-- is the filter replacement dependent on time elapsed or amount of water used?

Hi, Thanks for your interest in our product. Please note the lifespan of our products relies on two factors: time elapsed and amount of filtered water, when either of these two dimensions is reached, cartridge replacement is required. If you have any other questions, please feel free to contact us. Enjoy the rest of your day! Kind Regards Mia Lauren Customer Service Rep

Am i correct in my assumption that this is not an nsf certified water filtration system?

They were going through the NSF testing process for a while, but now their website and the product description on Amazon states that it is an NSF 58 & 372 CERTIFIED water filtration system with NSF certified replacement filters.

Will these filters work with the G2 system?

Hi Steven, Thanks for your interest in our Waterdrop WD-G2-B Reverse Osmosis System. We are sorry to tell you that those three filters for the G3 system can not work with the G2 system. The G2 system has two composite filters, which are CF filter and MRO filter. Both of them will be in stock in April. Here is the purchase link of there two filters for your reference. CF: http://www.amazon.com/dp/B082D1VZ4P?ref=myi_title_dp MRO: http://www.amazon.com/dp/B082CZV16X?ref=myi_title_dp If you have any questions, please feel free to give us a call between the hours of 8:00 AM-5: 00 PM (PST), Monday through Friday at 1-888-352-3558. We will try our best to help you out. Thank you very much. Best Regards, Mia Lauren

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Waterdrop WD-G3-W Replacement Filter 1-Year Combo, Pack of 2 WD-G3-N1CF Filters and 1 WD-G3-N3CB Filter

Product ID: 470061480

Details

Brand
Waterdrop
Capacity
400 gallons
Included components
2 CF filters 1
Installation type
Under Sink
Item weight
2.07 kg
Material
Activated

⏳1-year long service life

💧3-in-1 multi-stage filtration

🥥Natural coconut shell carbon block

A$64

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your hydration game with pure, fresh water—because your health deserves the best!

YEAR LONG FRESHNESS - Enjoy a full 12 months of consistently pure, great-tasting water for your home and family.
COCONUT CARBON POWER - Premium activated carbon from natural coconut shells enhances taste by removing chlorine and odors.
EFFORTLESS TWIST GO - Replace filters in just 3 seconds—no tools, no hassle, zero downtime.
SEAMLESS COMPATIBILITY - Designed for WD-G3-W, WD-G3P600, and WD-G3P800-W models—perfect fit, perfect flow.
TRIPLE STAGE PURITY BOOST - Advanced 3-in-1 filtration slashes sand, rust & impurities for crystal-clear water.

The Waterdrop WD-G3-W Replacement Filter 1-Year Combo includes two CF filters and one CB filter engineered for advanced 3-stage filtration. Utilizing natural coconut shell-activated carbon blocks, it effectively removes sand, rust, chlorine odors, and organic impurities, delivering clean, great-tasting water. Compatible with WD-G3-W, WD-G3P600, and WD-G3P800-W models, this tankless system offers easy twist-to-install replacement and a full year of reliable service, ensuring your household enjoys fresh, purified water effortlessly.

Specifications

ASIN	B07WZDLNLY
Best Sellers Rank	442,551 in DIY & Tools ( See Top 100 in DIY & Tools ) 379 in Replacement Under-Sink Water Filters
Brand	Waterdrop
Capacity	400 gallons
Customer Reviews	4.8 4.8 out of 5 stars (1,546)
EU Spare Part Availability Duration	1 Years
Filter Life Cycle	1 Years
Included Components	2 CF filters, 1 CB filter
Installation Type	Under Sink
Item Type Name	undersink-water-filtration-systems
Item Weight	2.07 kg
Manufacturer	Waterdrop
Manufacturer Part Number	WD-G3-2CFCB
Material Type	Activated Carbon,Carbon
Model Name	WD-A1-B
Model Number	WD-G3-2CFCB
Number of Items	3
Number of Packs	1
Other Special Features of the Product	Tankless
Power Source	Corded Electric
Purification Method	Activated Carbon, Carbon Block
Supported Water TDS Level Maximum (PPM)	500
UPC	840814161753
Unit Count	1.0 count
Upper Temperature Rating	100 Degrees Fahrenheit

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