“2 m Packed column for N2, CO2, H20, SO2” has been added to your cart. View cart → Transparent quartz tubes 25mm OD x 450 mm length; 1.5mm wall thickness combustion and reduction. For CM-5000 combustion module.$65.00 Transparent quartz tubes 25mm OD x 450 mm length; 1.5mm wall thickness combustion and reduction. For CM-5000 combustion module. quantity Add to cart Category: Combustion and reduction tubes Related products Out of Stock Read more Seals for top of tubes $18.00 Add to cart Pre-packed reactor for Sulfur $110.00 Out of Stock Read more Combustion Tube, CHN $66.00