Home Saltwater Products Test Kits API Test Kits API Phosphate Test Kit API Phosphate Test Kit$12.59 Tests phosphate levels from 0 to 10 ppm. 150 tests. API Phosphate Test Kit quantity Add to cart Add to wishlist SKU: AP166 Categories: API Test Kits, Controllers & Monitors, Saltwater Products, Test Kits Additional information Additional information Weight 1 lbs Related products Syncra Silent 4.0 Pump (951 GPH) – Sicce $169.99 Add to cartQuick View Replenish – Liquid Trace & Minor Minerals – Brightwell Aquatics $14.34 – $25.47 Select optionsQuick View Syncra Silent 3.5 Pump (660 GPH) – Sicce $139.99 Add to cartQuick View ME Potassium $12.99 – $17.99 Select optionsQuick View