
I purchased this membrane and filter set on April 5th, 2019. I usually buy every 18-24 months when the TDS test is above 35. I have a household of three people; without overuse. My normal TDS after install is 8 to 12. TDS is now testing/reading 60 to 73, well above my 2 year backup plan or 35 TDS threshold. The overall TDS of an unfiltered faucet is between 170 and 200. No change in water pressure or hardness, membrane failure in less than (5) months. I don't see any warranty information, but this is not normal; I will update my review after Fresh Water Systems reply. 09/07/19 Changed to one star, seller is not responding.

NANPU 1/2" NPT Air Drying System - 5 Micron Particulate Filter, 0.01 Micron Coalescing Filter, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl W/Metal Gauge
23 Review

NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review

NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review

NANPU 1 FRL Air Filter Regulator Lubricator Combo With 0-150 Psi Gauge, 5 Micron Brass Element, Poly Bowl & Semi-Auto Drain - Metal Bracket Included
20 Review