View cart “Inserts, Alumina For The Turbo N 4040 Combustion 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 ANCA Combustion/Reduction tubes $69.00 Add to cart Inserts, Quartz (Disposable) For Na 1500 Series I Combustion Tubes $45.00 Out of Stock Read more Combustion Tube, CHN $66.00