8.25" Diameter x 5.125 ID Cold Trap Donut Configuration:Glass With Gasket There is a port above

There is a port above the material flask on the U-Tube to insert a thermometer to more closely monitor the process

BuildAFlower Top Dress kit

SYMBYS StashBags – 15″ x 20″ Black and Clear Pre-Cut Zipper Vacuum Seal Bags can be used for short or long term use

This ready-to-use powder-like insecticide can be applied to cracks and crevices -- places where insects spend most of their time

Environmental Impact: Pentane is a volatile organic compound (VOC) that can contribute to air pollution

8.25" Diameter x 5.125 ID Cold Trap Donut Configuration:Glass With Gasket There is a port above8. 25" Diameter x 5. 125 ID Cold Trap Donut LID Our patented gasket #9475627 Disclaimer: This lid comes with a gasket included. This is a Replacement Lid for the following Vacuum Chambers: 1. 5 Gallon Cold Trap (2QT Tank) Dry Ice, Liquid Nitrogen