View cart “Seals for top of tubes” has been added to your 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 Combustion Tube, Large 25 mm Od $65.00 Add to cart Pre-packed reactor for Sulfur $110.00 Add to cart Pre-Packed Reactor For N, N/C $200.00