8441 Hydrotools Solution #1 Chlorine Test Kit Refill 1 Oz
Features
- The #1 solution is orthotolidine, a chlorine test solution
- Color and number coded for easy refill ordering
Specifications
| Brand | Swimline |
| Container Size | 1 oz |
| Container Type | Bottle |
| For Use With | 8440 Model Test Kit |
| Item | Solution #1 Chlorine Test Kit Refill |
| Packaging Quantity | 1 |
| Sub Brand | HydroTools |
Monitor your pool’s chlorine level quickly and accurately with the Swimline #1 OTO Test Solution Chlorine Drop Test Kit, 8441. This genuine HydroTools by Swimline reagent is the #1 OTO (orthotolidine) solution used to measure total chlorine in your pool water when paired with the matching test block kit.
Product Overview
Swimline 8441 is a 1 oz bottle of Solution #1 designed as a refill for the HydroTools Four‑in‑One Pool Water Test Kit, model 8440. The OTO reagent is added to a small water sample in the chlorine side of the test block, where it reacts with chlorine to produce a yellow‑to‑orange color that you compare against the scale to determine total chlorine level.
Highlights
- Genuine Swimline HydroTools Solution #1 OTO chlorine test reagent, part number 8441.
- Orthotolidine‑based formula designed for drop‑style total chlorine testing in residential pools.
- 1 oz bottle that is color and number coded to match the #1 position on HydroTools test kits for easy refill ordering and identification.
- For use with HydroTools model 8440 and similar drop‑test kits, helping maintain proper water balance for a clean, safe swimming environment.
Confidence Buying from EZ Pool & Spa Supply
Ordering the Swimline #1 OTO Test Solution, 8441, from EZ Pool & Spa Supply at eztestpools.com ensures you receive a genuine HydroTools reagent from a retailer that specializes in pool water testing supplies. Their product page clearly identifies the solution as #1 OTO for the 8440 test kit, making it easy to match and replace the correct chlorine reagent when your original bottle runs low or expires. With strong in‑stock availability, quick shipping, and knowledgeable support, EZ Pool & Spa Supply gives you confidence that your chlorine testing remains accurate and hassle‑free.
