Low Prices and Fast Shipping
The Water Factory System SQC4 HF #04-063 under-the-counter reverse osmosis unit is a four (4) stage system designed for use on either chlorinated or non-chlorinated water supplies. The "sanitary quick-change"(SQC) cartridges enable easy changes with no mess. The SQC 4 HF Model can be installed to feed an ice-maker within your refrigerator. The minimum water pressure requirement of the SQC4 HF Models is 40 psi. This system is discontinued and replaced by the 3MRO401 Reverse Osmosis System. All filters, RO membrane and parts are interchangeable with the new 3M system.
3M47-234825 SQC Sanitizing Service Reusable Cartridge. AP1-E 3M Service Cartridge for SQC drinking water systems by Water Factory, CUNO and 3M
3M Reverse Osmosis Systems 3MRO301, 3MRO401 AND 3MRO501. 3MROP310, 3MROP316, 3MROP411, 3MROP412, 3MROP416 Replacement Filters and 3MROM413 RO Membranes in stock for prompt shipment. Low prices and fast shipping online since 1999.
Water Testing, TDS Meters and Water Test Supplies. Large selection, low prices and fast shipping online since 1999.
Replacement Faucets for 3M, CUNO, Aqua-Pure and Water Factory RO Reverse Osmosis and Under Sink Pure Drinking Water Filter Systems. Huge selection of styles and finishes in stock. Low prices and fast shipping online since 1999.
Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS Rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.
See our selection of TDS meters under Water Tests