Specially designed to replace the antiquated NSA 100S
Designed expressly to replace the discontinued National Safety Associates
(NSA) 100S or the NSA 3000HM filter. NOTE! — As a REPLACEMENT filter, it is presumed that the inlet and outlet connector lines are in place and do not need to be replaced. This filter is shipped with no accessory hardware or connector lines — only the filter to replace an existing installed filter.
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 $10 more you get an additional 10,000 gallons of flow-thru service life. [$10 divided by 10,000 gallons = roughly $0.001 per gallon.] Yep. That’s a TENTH of a penny per additional gallon. Click HERE to check out the US4-R for only $225.00.