Reads pH from 5.0 to 9.0. For 160 tests. Ship weight 1 lbs. #1716301160 $4.29	Reads from 0 to 5 ppm. For 75 tests. Ship weight 1 lbs. #1716301162 $6.99
Reads all salt levels. Tests vary due to method. Ship weight 1 lbs. #1716301163 $8.59	Reads from 0 to 5 ppm. For 180 tests. Ship weight 1 lbs. #1716301161 $6.99
Reads 0-100 ppm. For 45 tests. Ship weight 1 lbs. #4679816616 $10.99	Reads all ranges of hardness. Tests vary due to method. Ship weight 1 lbs. #4679816612 $7.59
Reads all ranges of oxygen. For 30 tests. Ship weight 1 lbs. #4679816630 $14.89	Reads all ranges of carbonate hardness. Tests vary due to method. Ship weight 1 lbs. #4679816611 $9.59
Reads 0-100 ppm. For 45 tests. Ship weight 1 lbs. #4679816613 $7.59	25 tests. Ship weight 1 lbs. #4679816617 $8.99