If I wanted to add this as a single filter after another filter system what housing would I use for it?

iSpring HW12 10 inches Reverse Osmosis Water Filter Housing - White, 1/4 Inch. its 10"x2.5 standard filter cartridges, compatible with most RO systems. If you have other questions, please call us at 678-261-7611 (M-F, 8:30 - 5:30 EST), text us at 470-560-0012 (M-F, 8:30 - 5:30 EST), or email us at support@123filter.com. We are happy to help!

Can a CTO filter be used in place of this?

Hi Justin, It is not recommended to stray away from the intended order of our filters and mix-n-match, but it will fit and it is physically compatible. That being said, the misuse of our filters voids any kind of warranty, so we would suggest otherwise. Please contact our customer service department at 678-261-7611 or via email at feedback@ispringfilter.com if you need assistance or if you have other questions, Kind Regards, iSpring Water Systems Tel: (678) 261-7611

will this work with your iSpring US31 system?

Hi, Yes, this will work with our US31 units. For more details, please contact us directly at (678)261-7611. Regards, iSpring Water Systems, LLC.

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FG15

Product ID: 35212358

Details

External Testing Certification
ANSI
Item Weight
10.4 ounces
Material
Granular
Product Benefits
Removes and
Product Dimensions
2.5"D x 2.5"W

🌴Coconut shell carbon purity

💧5 micron filtration precision

⚙️Universal 10-inch compatibility

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Description

💧 Elevate your hydration game with every sip!

EFFORTLESS INTEGRATION - Fits all standard 10-inch filter housings for a seamless under-sink upgrade.
CRYSTAL CLEAR HYDRATION - Removes PFAS, chlorine, and odors for pure, refreshing water every time.
LONG LASTING PERFORMANCE - Up to 12 months of reliable filtration, balancing cost-effectiveness with premium quality.
ECO FRIENDLY CARBON POWER - Made from sustainable coconut shell carbon for superior adsorption and taste enhancement.
CERTIFIED QUALITY ASSURANCE - ANSI-certified for trusted, tested water purification you can count on.

The iSpring FG15 GAC Water Filter Replacement uses granular activated carbon from coconut shells to remove PFAS, chlorine, and odors, delivering clean, great-tasting water. Designed to fit all standard 10-inch filter housings, it offers up to 12 months of effective filtration, backed by ANSI certification for quality and reliability.

Specifications

ASIN	B01FH8SHDQ
Best Sellers Rank	#3,723 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #281 in Replacement Under-Sink Water Filters
Brand Name	iSpring
Customer Reviews	4.4 4.4 out of 5 stars (181)
External Testing Certification	ANSI
Global Trade Identification Number	00662425080052
Included Components	1x FG15 GAC Filter
Item Dimensions D x W x H	2.5"D x 2.5"W x 10"H
Item Type Name	iSpring FG15 2.5"x10" Water Filter Replacement for Reverse Osmosis Water Filter System, GAC Granular Activated Carbon Filter Water Filter Cartridge Reduce PFAS
Item Weight	10.4 ounces
Manufacturer	iSpring Water Systems
Manufacturer Part Number	FG15
Material Type	Granular Activated Carbon
Model Number	1
Number of Items	1
Product Benefits	Removes impurities and improves water taste
Set Name	Granular Activated Carbon Filter Replacement
UPC	662425080052
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$42.09

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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