Our Double Layered Tube provides extra protection for your toxic sample. It can also be used with a reference standard which is insoluable in the sample or may cause a reaction. There is approximately a 50 m gap between the inner and outer tubes. Ideal for variable temperature studies as both components are Pyrex glass. Choose between 3, 5 and 10mm sizes.
100% Satisfaction Guarantee: At Mansion Schools, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Schools in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.