MASTER LIQUID TEST KIT MASTER LIQUID TEST KIT $17.50 SKU: AQP164M QTY: Click here to save 5% off of your order! MASTER LIQUID TEST KIT PondCare® Master Test Kit is a complete kit for testing tap water & pond water. Tests water 4 different ways to protect pond fish from dangerous water conditions. Tests include: pH, ammonia, nitrite, and salt. Kit contains instruction book, improved  color cards for easier reading, 4 test tubes and holding tray.