Undersink Water Filter Systems

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Our Undersink POU (Point Of Use) Systems at a Glance
Click on the Model Number to jump down to a description of the unit
Model
Dimensions
Capacity
Features
Price
US4
5" Dia. x 16.5" H
35,000 gal.
Our most popular undersink filter
$225.00
US413
5" Dia. x 14" H
25,000 gal.
Replacement for the NSA 100S "Time Bomb"   ON SALE NOW!
$219.00
US4S
10.25" Dia. x 16.5" H
35,000 gal.
With 10" sediment pre-filter
$232.00
US4FL
10.25" Dia. x 16.5" H
35,000 gal.
With 10" Fluoride Reducing pre-filter
$246.00
US4NR
10.25" Dia. x 16.5" H
35,000 gal.
With 10" Nitrate Reducing pre-filter
$246.00
US4AR
10.25" Dia. x 16.5" H
35,000 gal.
With 10" Arsenic Reducing pre-filter
$283.00
US3
4" Dia. x 16.5" H
25,000 gal.
Space-saver undersink filter
$179.00
RUS
4.5" Dia. x 12" H
5,000 gal.
Replaceable cartridge type filter
$165.00
RUSD
11" Dia. x 12" H
5,000 gal.
Replaceable cart type w/10" sediment pre-filter
$199.00
RC
2.75" Dia. x 11.5" H
3,000 gal.
Appliance or Ice-maker in-line filter. Replacement for the NSA 25-I
$92.00
Watts RO
13.5" Dia. x 17" H
50 GPD
4-Stage Reverse Osmosis System
$335.00
All units except US413 are for new installations.
New installation models include saddle valve, neoprene water lines, gooseneck faucet kit, installation instructions.
NOTE: These systems are designed to work on treated "tap" water. Not recommended for use on water that is untreated or from biologically unsafe water supplies.


Deluxe Undersink Water Filter
ESD-US4

Most popular and best buy undersink water filter on the market!
Click on the pic to read full details about this filter.
$225.00 w/ FREE Shipping to Lower 48 USA
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SPECIALTY FILTER
ESD-US413

Specially designed to replace the antiquated NSA 100S
Click on the pic to read full details about this filter.
$219.00 w/ FREE Shipping to Lower 48 USA
Loss Leader Sale ONLY $195.00 and still with FREE SHIPPING!
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Deluxe Undersink w/ 10" Pre-filter
ESD-US4S

1 micron (nominal) sediment cartridge included
Click on the pic to read full details about this filter.
$232.00 w/ FREE Shipping to Lower 48 USA
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Deluxe Undersink w/ 10" Fluoride Reducing Pre-filter
ESD-US4FL

Activated Alumina cartridge included
Click on the pic to read full details about this filter.
$246.00 w/ FREE Shipping to Lower 48 USA
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Deluxe Undersink w/ 10" Nitrate Reducing Pre-filter
ESD-US4NR

Nitrate reduction cartridge included
Click on the pic to read full details about this filter.
$246.00 w/ FREE Shipping to Lower 48 USA
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Deluxe Undersink w/ 10" Arsenic Reducing Pre-filter
ESD-US4AR

Two Arsenic reduction cartridges included
Click on the pic to read full details about this filter.
$283.00 w/ FREE Shipping to Lower 48 USA
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Standard Space-Saver Undersink Water Filter
ESD-US3

Space saver economy model
Click on the pic to read full details about this filter.
$179.00 w/ FREE Shipping to Lower 48 USA
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Replaceable Cartridge Undersink Water Filter
ESD-RUS

Easy cartridge replacement. Standard GAC/KDF cartridge
Click on the pic to read full details about this filter.
$165.00 w/ FREE Shipping to Lower 48 USA
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Replaceable Cartridge Undersink Water Filter w/ Sediment Pre-filter
ESD-RUSD

Click on the pic to read full details about this filter.
$199.00 w/ FREE Shipping to Lower 48 USA
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Appliance and Icemaker in-line water filter
ESD-RC

Click on the pic to read full details about this filter.
$92.00 w/ FREE Shipping to Lower 48 USA
Replaces the now antiquated/obsolete NSA 25-I
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50 GPD Undersink Reverse Osmosis (RO) System
Watts RO

Click on the pic to read full details about this system.
$335.00 w/ FREE Shipping to Lower 48 USA
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