Description
Safe N Simple 5" x 5" Convex Wafer Unit:Box of 5 Select the bag of 20 5 inches for comprehensive Dimensions:1 3 4 X 1 3 4 Inch MCK_1128076_CS Regular Tip Select the bag of 20 for personal use or the case of 180 for extended supply needs All your lab's pipettes can be tested in the same way with no changes in test procedure with Streck Laboratories' pipette verification service kit