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