GH pH Test Kit

Monitor and maintain optimal pH levels between 5.5 and 6.5 with the General Hydroponics® pH Test Kit. This comprehensive solution features super concentrated indicator drops that provide accurate readings across a wide pH spectrum (4.0-8.5). The included sampling tube, reagent, and color comparison chart ensure precise, reliable testing. Use in conjunction with pH Up or pH Down (sold separately) to achieve ideal growing conditions for maximum nutrient availability and plant performance.