Standards
$9.95
Make sure you are performing the CYA test correctly with this water sample (30mL) containing 50 ppm CYA.
$175.00
A complete test kit for fresh water pools. Everything you need in one box.
Kits
$36.00
You must measure CYA (aka stabilizer/sunscreen) to know how much free chlorine to maintain in your pool. Small size does up to 20 tests.