stable formula ph up down solution

{"cid":"91178288","title":"Hydroponic pH Adjustment Kit with 250mL Capacity for Optimal Plant Nutrient Absorption and Stable Formula","imgUrl":"https:\/\/img.chinax.com\/nimg\/8f\/12\/bb74a6e7f2b97be634f5d274bde0-200x200-1.jpg","attrs":{"Brand Name":"yieryi","Minimum Order Quantity":"20","Place of Origin":"Guangdong, China","Accuracy":"0.1 Ph","Solution Types":"pH Up (Base) & pH Down (Acid)","Capacity per Bottle":"250mL each","pH Adjustment Range":"0-14","Target pH Range":"5.5-8.5","Dosage Guidance":"3-5mL per 100L","pH Adjustment Rate":"0.1-0.2 units","Model":"YY-250ML-SJ,YY-100ML-SJ","Type":"pH Adjustment Kit","Accuracy Class":"High Accuracy","Key Features":"Stable Formula, Low Evaporation, High Accuracy, Long-Lasting Use","Solution Volume":"250mL","Application":"Agricultural Irrigation","Meter Types":"Digital pH Meter, pH Test Pen, Laboratory pH Meter, Micro pH Meter","Customized Support":"OEM"}}