View cart “Seals for top of tubes” has been added to your cart. 4 M Packed Column For N2, Co2$450.00 4 m Packed column for N2, CO2 Out of stock SKU: 51085 Category: Combustion and reduction tubes Additional information Additional information Package 1 Related products Out of Stock Read more Transparent Quartz Tube, 1.5 mm Wall Thickness $44.00 Add to cart Pre-Packed Reactor For N, N/C $200.00 Add to cart Combustion Tube, Large 25 mm Od $65.00