(2 Bottles(100PCS)) 50pcs/100pcs Water Test Strips Chlorine Spa Swimming Pool PH Dip Tester Paper The product is shipped based on the color or size of the main image of the product page. Details: (2 Bottles(100PCS)) 50pcs/100pcs Water Test Strips Chlorine Spa Swimming Pool PH Dip Tester Paper The product is shipped based on the color or size of the main image of the product page. Quantity:2 Bottles(100PCS) Features: 3 in 1 Pool and Spa water quality test strips. Easy to test: Free Chlorine/Bromine ,pH,Total Alkalinity. Easy to distinguish: Color difference is obvious, easier to compare the strip color to the color chart. Test at both ends of pool twice a week for best results. Dip in water for instant reading and comes in easy-to-store container. Perfect for swimming pool and spa test. Item type: Swimming Pool SPA Test Strips Material: Paper Color: As pictures Package includes: 1/2 bottle of Pool SPA Test Strips (Total 50/100PCS)