NSF Product and Service Listings
These NSF Official Listings are current as of Sunday, August 16, 2026 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.
Alert: NSF is concerned about fraudulent downloading and manipulation of website text. Always confirm this information by clicking on the below link for the most accurate information: http://info.nsf.org/Certified/PwsChemicals/Listings.asp?Company=3Q460&Standard=060&
NSF/ANSI/CAN 60
Drinking Water Treatment Chemicals - Health Effects
Drinking Water Treatment Chemicals - Health Effects
| Genesys International Ltd. | ![]() |
| 3A Aston Way | |
| Midpoint 18 | |
| Middlewich, Cheshire CW10 0HS | |
| United Kingdom | |
| 44 1606 837605 | |
| Visit this company's website |
Facility : Anaheim, CA
|
Miscellaneous Water Supply Products[1] |
||
| Trade Designation | Product Function | Max Use |
| OptiClean A[2] | Membrane Cleaner | NA |
| OptiClean B[2] | Membrane Cleaner | NA |
| OptiClean B+[2] | Membrane Cleaner | NA |
| OptiClean D[2] | Membrane Cleaner | NA |
| OptiClean N[3] | Membrane Cleaner | NA |
| OptiClean S[2] | Membrane Cleaner | NA |
| Preservol[4] | Membrane Cleaner | NA |
[1] This product is designed to be used off-line and flushed out prior to using the system
for drinking water, following manufacturer's use instructions.
[2] Please verify the use instructions: Dosed at up to 1 pound [0.45 kg] for every 12 gal
[45 L] of water.
[3] Please verify the use instructions: Dosed at up to 0.5 pound [0.23 kg] for every 12 gal
[45 L] of water.
[4] Please verify the use instructions: Dosed at up to 1 lb for every 6 gal of water.
|
||
Facility : National City, CA
|
Miscellaneous Water Supply Products[1] |
||
| Trade Designation | Product Function | Max Use |
| OptiClean A[2] | Membrane Cleaner | NA |
| OptiClean B[2] | Membrane Cleaner | NA |
| OptiClean B+[2] | Membrane Cleaner | NA |
| OptiClean D[2] | Membrane Cleaner | NA |
| OptiClean N[3] | Membrane Cleaner | NA |
| OptiClean S[2] | Membrane Cleaner | NA |
| Preservol[4] | Membrane Cleaner | NA |
[1] This product is designed to be used off-line and flushed out prior to using the system
for drinking water, following manufacturer's use instructions.
[2] Please verify the use instructions: Dosed at up to 1 pound [0.45 kg] for every 12 gal
[45 L] of water.
[3] Please verify the use instructions: Dosed at up to 0.5 pound [0.23 kg] for every 12 gal
[45 L] of water.
[4] Please verify the use instructions: Dosed at up to 1 lb for every 6 gal of water.
|
||
Facility : Vista, CA
|
Miscellaneous Treatment Applications |
||
| Trade Designation | Product Function | Max Use |
| Genesys LF | Reverse Osmosis Antiscalant | 10mg/L |
| Genesys MP | Reverse Osmosis Antiscalant | 10mg/L |
| Genesys SW | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard 260 | Reverse Osmosis Antiscalant | 10mg/L |
|
Miscellaneous Treatment Chemical |
||
| Trade Designation | Product Function | Max Use |
| DendriTab | Reverse Osmosis Antiscalant | 1mg/L |
| OptiClean™ ENZ | Membrane Cleaner | NA |
| OptiClean™ N | Membrane Cleaner | NA |
| OptiClean™ X Eco | Membrane Cleaner | NA |
| OptiClean™ Y Eco | Membrane Cleaner | NA |
| SpectraGuard 150 SC | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard 205SC | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard 211 SC | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard 225 | Reverse Osmosis Antiscalant | 20mg/L |
| SpectraGuard 250 | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard 281 | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard 350 | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard 360 | Reverse Osmosis Antiscalant | 20mg/L |
| SpectraGuard™ 300 | Reverse Osmosis Antiscalant | 20mg/L |
| SpectraGuard™ 302 | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard™ 303 | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard™ 311 | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraTab™ | Reverse Osmosis Antiscalant | 1mg/L |
|
Miscellaneous Water Supply Products |
||
| Trade Designation | Product Function | Max Use |
| BioGuard 100 | Distillation Antiscalant Reverse Osmosis Antiscalant |
10mg/L |
| BioGuard 111 | Distillation Antiscalant Reverse Osmosis Antiscalant |
10mg/L |
| Genesol 80[1] | Membrane Cleaner | NA |
| Genesol UF-Fe | Membrane Cleaner | NA |
| Lavasol™ 1[1] | Membrane Cleaner | NA |
| Lavasol™ 2[1] | Membrane Cleaner | NA |
| Lavasol™ 5[1] | Membrane Cleaner | NA |
| Lavasol™ 6[1] | Membrane Cleaner | NA |
| Lavasol™ 7[1] | Membrane Cleaner | NA |
| Lavasol™ 9[1] | Membrane Cleaner | NA |
| OptiClean A™[1] | Membrane Cleaner | NA |
| OptiClean B™[1] | Membrane Cleaner | NA |
| OptiClean S™[1] | Membrane Cleaner | NA |
| OptiClean™ B+[1] [2] | Membrane Cleaner | NA |
| OptiClean™ D[1] | Membrane Cleaner | NA |
| OrganoGuard 100 | Distillation Antiscalant Reverse Osmosis Antiscalant |
10mg/L |
| OrganoGuard 111 | Distillation Antiscalant Reverse Osmosis Antiscalant |
10mg/L |
| Preservol (liquid)[1] | Membrane Cleaner | NA |
| Preservol (powder)[1] | Membrane Cleaner | NA |
| SpectraGuard 100 | Distillation Antiscalant Reverse Osmosis Antiscalant |
10mg/L |
| SpectraGuard 103 | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard 111 | Distillation Antiscalant Reverse Osmosis Antiscalant |
10mg/L |
| SpectraGuard™ | Distillation Antiscalant Reverse Osmosis Antiscalant |
10mg/L |
| SpectraGuard™ 101 | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard™ 105 | Reverse Osmosis Antiscalant | 10mg/L |
| Titan ASD 200 SC™ | Reverse Osmosis Antiscalant | 10mg/L |
| Titan ASD 200™ | Reverse Osmosis Antiscalant | 10mg/L |
[1] This product is designed to be used off-line and flushed out prior to using the system
for drinking water, following manufacturer's use instructions.
[2] The pH of the influent and effluent water should be monitored to ensure that all traces
of the product have been removed before placing into service.
|
||
|
Poly (Diallyldimethylammonium Chloride)(pDADMAC) |
||
| Trade Designation | Product Function | Max Use |
| FilteRx™5110 | Coagulation & Flocculation | 100mg/L |
| FilteRx™5120 | Coagulation & Flocculation | 50mg/L |
|
Sodium Bisulfite[3] |
||
| Trade Designation | Product Function | Max Use |
| MB-30 | Dechlorinator & Antioxidant | 15mg/L |
| MB-40 | Dechlorinator & Antioxidant | 15mg/L |
[3] This product contains sulfite. Sulfites have been known to cause potentially lethal
allergic reactions in sulfite-sensitive individuals. The maximum recommended allowable
residual sulfite level in the finished drinking water is 100 ppb (0.1 mg/L).
|
||
Facility : Qualiano, NA, Italy
|
Miscellaneous Treatment Chemical |
||
| Trade Designation | Product Function | Max Use |
| Genesys LF | Reverse Osmosis Antiscalant | 10mg/L |
| Genesys LS | Reverse Osmosis Antiscalant | 10mg/L |
| Genesys MP | Reverse Osmosis Antiscalant | 10mg/L |
Facility : Barcelona, Spain
|
Miscellaneous Treatment Chemical |
||
| Trade Designation | Product Function | Max Use |
| SpectraGuard™ 100 | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard™ 250 | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard™ 360 | Reverse Osmosis Antiscalant | 20mg/L |
|
Miscellaneous Water Supply Products[1] |
||
| Trade Designation | Product Function | Max Use |
| Lavasol™ 6[2] | Membrane Cleaner | NA |
| Lavasol™ 6P[2] | Membrane Cleaner | NA |
| Lavasol™ 9 | Membrane Cleaner | NA |
| OptiClean™ A | Membrane Cleaner | NA |
| OptiClean™ G | Membrane Cleaner | NA |
| OptiClean™ S | Membrane Cleaner | NA |
[1] This product is designed to be used off-line and flushed out prior to using the system
for drinking water, following manufacturer's use instructions.
[2] Use instructions: Dose at a maximum of 1 gal / 50 gal.
|
||
Facility : Cheshire, United Kingdom
|
Miscellaneous Treatment Chemical |
||
| Trade Designation | Product Function | Max Use |
| Genesys CAS | Reverse Osmosis Antiscalant | 10mg/L |
|
Miscellaneous Water Supply Products |
||
| Trade Designation | Product Function | Max Use |
| Genesol 38[1] [2] | Membrane Cleaner | NA |
| Genesol 40[1] [2] | Membrane Cleaner | NA |
| Genesol 61[1] | Membrane Cleaner | NA |
| Genesol 701[1] [2] | Membrane Cleaner | NA |
| Genesol 703[1] [2] | Membrane Cleaner | NA |
| Genesol 704[1] [2] | Membrane Cleaner | NA |
| Genesol 711[1] [2] | Membrane Cleaner | NA |
| Genesol 721[1] [2] | Membrane Cleaner | NA |
| Genesol 734[1] [2] | Membrane Cleaner | NA |
| Genesol 764[1] [2] | Membrane Cleaner | NA |
| Genesol 80 | Reverse Osmosis Antiscalant | 80mg/L |
| Genesol 80[1] | Membrane Cleaner | NA |
| Genesol UF Fe[1] [2] | Membrane Cleaner | NA |
| Genesol UF12[1] [2] | Membrane Cleaner | NA |
| Genesol UF2[1] [2] | Membrane Cleaner | NA |
| Genesol UF7[1] [2] | Membrane Cleaner | NA |
| Genesol UF8 | Reverse Osmosis Antiscalant | 80mg/L |
| Genesol UF8[1] | Membrane Cleaner | NA |
| Genesys LF | Reverse Osmosis Antiscalant | 10mg/L |
| Genesys LP | Reverse Osmosis Antiscalant | 20mg/L |
| Genesys LS | Reverse Osmosis Antiscalant | 10mg/L |
| Genesys MP | Reverse Osmosis Antiscalant | 10mg/L |
| Genesys SI | Reverse Osmosis Antiscalant | 10mg/L |
| Lavasol 80 | Reverse Osmosis Antiscalant | 80mg/L |
| Lavasol 80[1] | Membrane Cleaner | NA |
| Lavasol™ 7[1] | Membrane Cleaner | NA |
| OptiClean A+[1] [2] | Membrane Cleaner | NA |
| OptiClean B+[1] [2] | Membrane Cleaner | NA |
| OptiClean G+[1] [2] | Membrane Cleaner | NA |
| OptiClean N+[1] [2] | Membrane Cleaner | NA |
| SpectraGuard™ 100 | Reverse Osmosis Antiscalant | 20mg/L |
| SpectraGuard™ 101 | Reverse Osmosis Antiscalant Distillation Antiscalant |
20mg/L |
| SpectraGuard™ 111 | Reverse Osmosis Antiscalant Distillation Antiscalant |
10mg/L |
| SpectraGuard™ 150 SC | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard™ 205 SC | Reverse Osmosis Antiscalant | 10mg/L |
| SpectraGuard™ 211 SC | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard™ 300 | Reverse Osmosis Antiscalant | 20mg/L |
| SpectraGuard™ 311 | Reverse Osmosis Antiscalant | 5mg/L |
| SpectraGuard™ 360 | Reverse Osmosis Antiscalant | 20mg/L |
[1] This product is designed to be used off-line and flushed out prior to using the system
for drinking water, following manufacturer's use instructions.
[2] The pH of the influent and effluent water should be monitored to ensure that all traces
of the product have been removed before placing into service.
|
||
|
Poly (Diallyldimethylammonium Chloride)(pDADMAC) |
||
| Trade Designation | Product Function | Max Use |
| Genefloc PWF | Coagulation & Flocculation | 5mg/L |
Facility : Rossendale, Lancs, United Kingdom
|
Miscellaneous Water Supply Products |
||
| Trade Designation | Product Function | Max Use |
| Genesol 38[1] | Membrane Cleaner | NA |
| Genesol 701[1] | Membrane Cleaner | NA |
| Genesol 703[1] | Membrane Cleaner | NA |
| Genesol 704[1] | Membrane Cleaner | NA |
| Genesol 711[1] | Membrane Cleaner | NA |
| Genesol 721[1] | Membrane Cleaner | NA |
| Genesol 734[1] | Membrane Cleaner | NA |
| Genesol 764[1] | Membrane Cleaner | NA |
| Genesol UF12 | Membrane Cleaner | NA |
| Genesol UF2[1] | Membrane Cleaner | NA |
| Opticlean A+[1] | Membrane Cleaner | NA |
[1] This product is designed to be used off-line and flushed out prior to using the system
for drinking water, following manufacturer's use instructions.
The pH of the influent and effluent water should be monitored to ensure that all traces
of the product have been removed before placing into service.
|
||
Facility : South Wales, United Kingdom
|
Miscellaneous Water Supply Products |
||
| Trade Designation | Product Function | Max Use |
| Genesys LF | Reverse Osmosis Antiscalant | 10mg/L |
Number of matching Manufacturers is 1
Number of matching Products is 132
Processing time was 0 seconds


