HotStarTaq Plus Master Mix Kit (1000) For 1000 x 20 µl reactions: 12 x 0.85 ml HotStarTaq Plus Master Mix, containing 1000 units of HotStarTaq Plus DNA Polymerase total, 4 x 0.55 ml CoralLoad Concentrate, 8 x 1.9 ml RNase-Free Water HotStarTaq Plus Master Mix Kits offer all the benefits of great specificity, sensitivity, and performance as HotStarTaq Plus DNA Polymerase NOW in a master mix format, which offers even faster results and added convenience.