Nalgene® Polycarbonate Slant Test Tube Racks are useful for incubating liquid cultures on a slant

The unique end plate design allows 5° or 20° slant when the rack is set down on either side. To use the racks properly, autoclave the tubes of media in the rack. While the media is still hot, set the rack on bench at desired angle. The media will harden with a consistent slant. These racks are keyed with numbers and letters for identification and stackable. 4 x 10 array and 15.5 cm width at end of plates on top.