Constriction opening is 0.5 to 2.0 mm and is located 1.8” from the cap end of the tube, leaving a 7.2” long tube after seal-off

·          Supplied with a polyethylene cap

·         Sandblasted marking spot for easy identification

·         OD 5 mm

·         Wall thickness .375 mm

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements