Poolmaster 22270 5-Way Test Kit with Case. THIS PREMIER LEVEL TESTING KIT features a DELUXE ACRYLIC test block in round-vial design that gives you crystal clear readings. The integrated color chips ensure a clear and accurate view of the SIX color-correct readouts. The round filling vials are large with embossed indication markings in addition to BROMINE levels featured directly on the front of the block.