Replacement Phenol Red Solution in 1/2 Ounce Bottle (#8470)

Swimline Hydrotools replacement Phenol Red pH test solution in 1/2 ounce bottle for Model 8410 and 8420 pool water test kits The Model 8470 Replacement Phenol Red pH Test Solution in 1/2 Ounce Bottle Features Include 1/2 ounce bottles of Phenol Red pH Level test solution Replacement test solution for Model 8410 and 8420 Hydrotools Test Kits