AquaChek 521252A 4-in-1 Total Bromine Red Test Strips - 50 Count Northstar SP4000 High Performance

Northstar SP4000 High Performance

with finer particles being filtered out as the pores of the element become clogged by the larger debris

Traps Iron and Copper from Municipal and Well-Water Sources During Fills and Top Offs

Compares to BioGuard Balance Pak 100

Nautilus Plus NS24

AquaChek 521252A 4-in-1 Total Bromine Red Test Strips - 50 Count Northstar SP4000 High PerformanceIdeal for customers who use bromine as a sanitizer in their spa or pool. Includes a 4th test for Total Hardness as low levels can cause significant damage to metal pipes & fixtures, as well as plaster. Get test results for 4 important chemistries in seconds: Total Bromine, pH, Total Alkalinity, and Total Hardness. Works in spas and pools equipped with sodium bromide generators.