PoolCheck® Pro Total Hardness Bottle of 50 tests | ITS-480334

*Please note when ordering Industrial Test Systems, the minimum order must be equal to or greater than $150.00 of ITS products.  There is also a lead time of 10-14 business days for fulfillment and shipping. Thank you. When accuracy counts, it pays to know the difference! Our Pool Check® Pro Total Hardness test strips are the choice of pool and spa industry professionals around the world. Why? Because of their ease-of-use and exceptional accuracy make them the perfect companion to a safe and full-functional pool and/or spa. 50 tests. Detects:*0, 50, 120, 180, 250, 425, 1000 ppm (mg/L) Additional information Weight 5.0 oz Dimensions 4 × 2 × 4 in