Salifert Pond Profi-Test KH Test Kit is a Salifert-branded product in the ownkoi catalog. Liquid reagent KH (carbonate hardness) test kit from Salifert. Manufacturer documentation cites approximately 100 individual tests per kit and a precision higher than typical strip-format products. Specifications and pricing reflect the manufacturer-published or retailer-published data at the most recent catalog refresh. Verify the live listing on the source retailer page before purchase.