Solution — STOP using the NSA 100S under-sink water filter IMMEDIATELY!
Whether you buy our recommended replacement water filer or not, you should take that NSA 100S water filter out of service (shut off water pressure to it) right now!
Chances are most likely you WILL NOT experience a “leak” from your 100S. It’ll be a sudden explosive rupture. That’s a filter under pressure so just feature a water pipe splitting open. That’s how probably 98% of them go.
Switch to a superior brand of water filter. H2O International now makes a sealed under-sink water filter for ESD that is expressly designed to replace the now antiquated NSA 100S. That’s our ESD-US413 model.
Here is a little at-a-glance comparison chart. See for yourself:
* Currently offered with FREE shipping to any destination in the Lower 48 USA. Check display page for current SALE price.
You can tell the NSA 100S from the “newer” (though equally antiquated, but apparently not prone to rupturing) 100SX by noting where the water lines connect to the filter. If there is a line at the top and a line near the base of the filter, that’s the older model 100S. Take it out of service as soon as possible. If both the inlet and the outlet water line attach at the top of the filter, that’s the “newer” 100SX model and you’re reportedly okay regarding any rupturing tendencies — but it’s surely time to replace it.
“I have just read your NSA 100S alert warning bulletin, whilst searching the internet for water filters. Guess what — the same happened to me last Sunday. All of a sudden I heard the sound of gushing water from under the kitchen sink…” — D. Kelly
Personal testimonies offered on this page are based on unsolicited reports from individuals not affiliated with NSA or Environmental Systems Distributing (ESD). ESD is not affiliated with NSA.