LOSS LEADER SALE!! NOW ONLY $179.00 and still with FREE SHIPPING! REPLACE THAT NSA 100S WATER FILTER (TIME BOMB) NOW! If you haven't already seen our bulletin on it, click HERE to read why and how current NSA 100S users are at risk. Same size and flow pattern as the old NSA 100S, EXCEPT... It doesn't explode! (is that really too much to ask?) It costs less ($179 vs $219) It's more efficient at contaminants removal (GAC + KDF vs all GAC) It lasts longer (25,000 gal. vs 12,000 gal.)   It's the H2O-US413 -- In-line Undersink Water Filter Designed expressly to replace the discontinued National Safety Associates (NSA) 100S or the NSA 3000HM filter. 5 stage filtration and purification system  Hooks up to existing faucet and water feed connector lines Bacteriostatic media: Prevents bacteria growth Improves taste, eliminates odors, removes color Removes hundreds of contaminants  Expected Service Life, a whopping: 25,000 Gallons! Manufacturer's prorated warranty

-- If you don't need to match up water lines exactly like the NSA 100S was installed, there's an even better deal. It's the Model US4-R Undersink filter replacement. It's about three inches taller than the NSA 100S, but it's rated for an even more economical 35,000 gallons. Here's the math. For just $15 more you get an additional 10,000 gallons of flow-thru service life. [$15 divided by 10,000 gallons = roughly $0.0015 per gallon.] Yep. That's a little over a tenth of a penny per additional gallon.

IMPORTANT: This filter uses the opposite flow pattern than the NSA 100S. The US4 INLET connector is at the base and the OUTLET connector is at the top of the filter, so you'll need to swap ends with the two water lines from the way the NSA filter is connected.
Click HERE to check out the US4-R for only $194.00.