View cart “Combustion Tube, Large 25 mm Od” has been added to your cart. Reduction Tube, CHN$66.00 Reduction tube, CHN Out of stock SKU: 63003 Category: Combustion and reduction tubes Additional information Additional information Package 1 Related products Add to cart Inserts, Quartz (Disposable) For Na 1500 Series I Combustion Tubes $45.00 Add to cart ANCA Combustion/Reduction tubes $69.00 Out of Stock Read more Transparent Quartz Tube, 1.5 mm Wall Thickness $44.00