“1 m Packed column for Oxygen (molecular sieve)” 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 Add to cart ANCA Combustion/Reduction tubes $69.00 Add to cart Transparent Quartz Tube, 1.5 mm Wall Thickness (2pk) $44.00 Add to cart 1 m Packed column for Oxygen (molecular sieve) $200.00