View cart “Combustion Tube, Large 25 mm Od” has been added to your cart. Pre-Packed Reactor For N, C/N Or Chn Analysis$155.00 Pre-packed reactor for N, C/N or CHN analysis Out of stock SKU: 61112 Category: Combustion and reduction tubes Additional information Additional information Package 1 Related products Out of Stock Read more Transparent Quartz Tube, 2 mm Wall Thickness $44.00 Add to cart Seals for top of tubes $18.00 Add to cart Inserts, Quartz (Disposable) For Na 1500 Series I Combustion Tubes $45.00