100Pcs 5-in-1 Swimming Pool pH Test Paper Chlorine Water Quality Test Strip Default:Default [Lighting position]: strong light-medium light-low

[Lighting position]: strong light-medium light-low light-strobe-SOS

shocking sense of incoming phone calls

keep you warm and comfortable in the water

edge a flower bed

100Pcs 5-in-1 Swimming Pool pH Test Paper Chlorine Water Quality Test Strip Default:Default [Lighting position]: strong light-medium light-lowThis listing is for 2 set of Pool Test Strip(100Pcs) Specification: Material: Paper Test area: Total Bromine test range: 0 1. 0 2. 0 5. 0 10. 0 20. 0 ppm Free chlorine test range: 0 0. 5 1 3 5 10 ppm PH test range: 6. 8 7. 2 7. 4 7. 6 8. 0 8. 4 Total Alkalinity test range: 0 40 80 120 180 240 ppm Total Hardness test range: 0 100 250 500 1000 Characteristic: [5 in 1]: Each pool test strip can measure 5 important parameters, PH, total alkalinity, total