Taylor® K‑1903 Color Wheel Kit for Boiler & Cooling Systems
Taylor® K‑1903 Color Wheel Kit for Boiler & Cooling Systems
The Taylor® K‑1903 Color Wheel Kit provides fast, reliable testing for key boiler and cooling‑water parameters. This updated kit replaces the K‑1645‑1 and features Taylor’s enhanced color‑wheel design, offering improved ergonomics, lighter weight, and more precise color matching. The reduced use of glass components increases durability and minimizes breakage and freeze‑damage risks, making the K‑1903 ideal for field and plant‑level water treatment monitoring.
Key Features
- Replaces the Taylor® K‑1645‑1 boiler/cooling test kit
- Enhanced color‑wheel design for improved ergonomics and accuracy
- Reduced glass components for increased durability and safety
- Simple, precise color matching for fast field testing
- Ideal for boiler, cooling tower, and closed‑loop water treatment programs
Tests & Ranges
- Alkalinity PM & PT: 1 drop = 10 ppm
- Total Hardness: 1 drop = 10 ppm
- Orthophosphate: 0–100 ppm
- Sulfite: 1 drop = 10 ppm
More About This Item
The K‑1903 kit is designed for routine monitoring of boiler and cooling‑system water chemistry. Taylor’s color‑wheel technology provides clear, repeatable visual endpoints, even in challenging lighting conditions. The ergonomic wheel design improves handling and reduces operator fatigue during frequent testing. With fewer glass components, the kit is more rugged for field use and less susceptible to breakage or freeze damage.
Included Components
- Color wheel assembly
- Reagent dropper bottles for all listed tests
- Sample tubes and accessories (non‑glass enhanced design)
- Instructions and test procedures
| Product Type: | Test Kit |
| Brand: | Taylor Technologies |
| Product Line: | Boiler/Cooling Systems |
| Range: | Multi |
| Notes: | Taylor items have a lead time of 3-15 days. |
Click Here to go to Taylor Technologies web site for additional product information.
![]() | Taylor Boiler Cooling Tests Brochure.pdf |
![]() | Taylor Industrial-Commercial Water Treatment Testing Products Catalog.pdf |

