| Watersafe® Rapid Bacteria Test (NCW-RBT-10) | nanoclean-water.com | 84 GBP | 93 GBP | −9.7% |
| Watersafe® Rapid Bacteria Test (NCW-RBT-10-W4H) | nanoclean-water.com | 84 GBP | 93 GBP | −9.7% |
| Water Suite 12-in-1 Tap Water (Laboratory Test) | biosafetysupplies.com | 473 SGD | — | — |
| Water Suite 11-in-1 (Laboratory Test) | biosafetysupplies.com | 406 SGD | — | — |
| Water Suite 7-in-1 (Laboratory Test) | biosafetysupplies.com | 259 SGD | — | — |
| Copper Water Test (Laboratory Test) | biosafetysupplies.com | 142 SGD | — | — |
| Copper Water Test (Laboratory Test) | biosafetysupplies.com | 142 SGD | — | — |
| Arsenic Water Test (Laboratory Test) | biosafetysupplies.com | 142 SGD | — | — |
| Aluminium Water Test (Laboratory Test) | biosafetysupplies.com | 142 SGD | — | — |
| Boron Water Test (Laboratory Test) | biosafetysupplies.com | 142 SGD | — | — |
| Cadmium Water Test (Laboratory Test) | biosafetysupplies.com | 142 SGD | — | — |
| Chromium Water Test (Laboratory Test) | biosafetysupplies.com | 142 SGD | — | — |
| Lead Water RDT Test (UKAS Laboratory Test) | biosafetysupplies.com | 137 SGD | — | — |
| Lead Water Test (Laboratory Test) | biosafetysupplies.com | 124 SGD | — | — |
| Watersafe® Rapid Bacteria – Box of 10 Tests WS-359BP | biosafetysupplies.com | 93.6 SGD | — | — |
| Watersafe® Drinking Water Test Kit WS-425D | spilldoc.sg | 68 SGD | — | — |
| Drinking Water Test Kit (NCW-WS-DWTK-W4H) | nanoclean-water.com | 42 GBP | — | — |
| Drinking Water Test Kit (NCW-WS-DWTK) | nanoclean-water.com | 42 GBP | — | — |
| Watersafe The Original Water Testing Kit for Drinking Water, Well and Tap Water, Sensitive Lead in Water Test, Bacteria, Hardness, pH, Nitrates, Easy Instructions, Lab-Accurate Results, 1 Kit | alohapurewater.com | 28.99 USD | — | — |
| Watersafe® Drinking Water Test Kit WS-425D | biosafetysupplies.com | 26 SGD | — | — |
| Ultra Sensative Watersafe® Lead Test | nanoclean-water.com | 19 GBP | — | — |
| Watersafe® Rapid Bacteria Test (NCW-RBT-01) | nanoclean-water.com | 17 GBP | — | — |
| Watersafe® Lead Test – Single Pouch WS-426D | biosafetysupplies.com | 12 SGD | — | — |
| Watersafe® Lead Test – Single Pouch WS-426D | spilldoc.sg | 12 SGD | — | — |
| Watersafe® Rapid Bacteria Test – Single Pouch WS-428D | biosafetysupplies.com | 0 SGD | — | — |
| Watersafe® Rapid Bacteria Test – Single Pouch WS-428D | spilldoc.sg | 0 SGD | — | — |
| Watersafe® Rapid Bacteria – Box of 10 Tests WS-427D | spilldoc.sg | 0 SGD | — | — |