Extech PH113 Filling Solution Kit for Exstik Refillable PH Electrode Module. Includes 1.5mL bottle KCl, 2 reference junctions and 2 removal tools.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
