Quickly determine packed cell volume (PCV) in clinic or on the farm with the Jorvet EZ Reader microhematocrit chart. This plastic card features a clear PCV chart graduation and securely holds 75 mm or shorter 40 mm microhematocrit tubes. Insert a centrifuged tube, align the 0% and 100% lines, and read the PCV% at the top of the red cell column. A compact, easy-to-use tool for small animal practices and livestock health products needs across dogs, cats, horses, cattle, sheep, and goats.