The Seachem MultiTest Silicate Test Kit is a comprehensive and easy-to-use test kit that measures silicates in both marine and freshwater environments. The kit includes 75 tests, a multi-cavity plate, and a reference guidebook. The tests can be used to measure silicates down to 0.5 mg/L, and the plate can accommodate up to six tests at a time. The kit also includes a reference guidebook that helps with test interpretation.