Pretreatment / Reverse Osmosis
Filter and Membrane Antiscalants, Antifoulants, Dispersants, and Biocides
At Mid South, we understand how critical filtration and membrane performance is to your system. We offer a complete line of products to extend the life of filter and membrane elements, improve the quality of water produced, and reduce the amount of maintenance and cleaning your system requires.
Reverse Osmosis Products
All Mid South Chemical reverse osmosis products are certified to NSF/ANSI/CAN 60 standards, ensuring safety and compliance for potable water treatment applications.
This list reflects the most recent NSF certifications available. For the complete and up-to-date listing, please visit: NSF Certified Products – Mid South Chemical.
RO Antiscalants
These high-performance antiscalants prevent scale formation, fouling, and mineral deposition on RO membranes, extending system life and maintaining consistent permeate production.
| Trade Designation | Category / Chemistry | Product Function | Max Use | Description |
|---|---|---|---|---|
| RO 1300 | Miscellaneous Water Supply Products | Reverse Osmosis Antiscalant | 11 mg/L | A high-performance antiscalant formulated to prevent scale, iron, and general fouling in RO systems, certified for use up to 11 mg/L to optimize membrane efficiency and longevity. |
| RO 1301 | Polyacrylic Acid | Reverse Osmosis Antiscalant | 21 mg/L | An advanced polyacrylic acid-based antiscalant providing excellent scale inhibition and dispersion, certified for use up to 21 mg/L, ideal for protecting RO membranes in challenging feedwater conditions. |
| RO 1302 | Miscellaneous Water Supply Products | Reverse Osmosis Antiscalant | 9 mg/L | A heavy-duty antiscalant designed for demanding applications, effectively controlling scale, iron, and fouling, certified for use up to 9 mg/L to maintain high RO system performance. |
| RO 1303 | Miscellaneous Treatment Applications | Reverse Osmosis Antiscalant | 10 mg/L | A specialized antiscalant with superior silica and magnesium silicate inhibition, certified for use up to 10 mg/L, ensuring long-term RO membrane protection and reduced cleaning frequency. |
| RO 1304 | Miscellaneous Treatment Applications | Reverse Osmosis Antiscalant, Distillation Antiscalant | 18 mg/L | An advanced antiscalant effective against silica polymers and magnesium silicate scale, certified for use up to 18 mg/L in RO and distillation systems for reliable, scale-free operation. |
| RO 1305 | Miscellaneous Treatment Applications | Reverse Osmosis Antiscalant | 40 mg/L | A robust, high-dose antiscalant formulated to prevent a broad range of scales and fouling, certified for use up to 40 mg/L, delivering consistent membrane performance in variable water quality. |
| RO 1321 | Miscellaneous Treatment Applications | Reverse Osmosis Antiscalant | 20 mg/L | A versatile antiscalant providing reliable scale control and membrane protection, certified for use up to 20 mg/L, suitable for a wide range of RO system conditions. |
RO Membrane Cleaners
These cleaners are formulated for off-line cleaning of reverse osmosis membranes. They must be thoroughly flushed out prior to returning the system to potable service, following manufacturer instructions.
| Trade Designation | Product Function | Max Use | Description |
|---|---|---|---|
| RO 1306 | Membrane Cleaner | NA (off-line use only) | A specialized off-line membrane cleaner designed to remove organic and inorganic foulants from RO membranes, restoring flux and performance when used according to instructions and followed by complete flushing. |
| RO 1307 | Membrane Cleaner | NA (off-line use only) | An effective off-line cleaner targeting scale, metal oxides, and biological deposits on RO membranes, certified for cleaning use with thorough rinsing required before resuming potable water production. |
| RO 1324 | Membrane Cleaner | NA (off-line use only) | A powerful off-line RO membrane cleaner formulated to dissolve and remove stubborn foulants, helping restore original membrane efficiency with complete flushing essential prior to service. |
Contact us for technical data sheets, safety information, dosing guidelines, or custom application support.