Ozone-free quartz tube

Ozone-free quartz tubing.clear,cut surface slig-ht purple.The product blocks wavelength<220nm,while transmit over 70% in 253.7nm
Ozone-free quartz tubing.clear,cut surface slig-ht purple.The product blocks wavelength<220nm,while transmit over 70% in 253.7nm.Good for all kinds of germcidal lamps.