Electro Technic - NITROGEN - Spectrum Glass Tube Filled With Nitrogen

Electro Technic - CARBON DIOXIDE - Spectrum Glass Tube Filled W/Carbon Dioxide

Electro Technic - OXYGEN - Spectrum Glass Tube Filled With Oxygen

Eisco Labs Premium Spectrum Tube - Krypton (Kr), 26cm

Eisco Labs Premium Spectrum Tube - Xenon (Xe), 26cm

Eisco Labs Premium Spectrum Tube - Nitrogen (N), 26cm

Electro-Therm Digital Thermometer TM99A With Probe and Case - Tested in Case C2

Eisco Labs Premium Spectrum Tube - Iodine Vapor (I), 26cm