This document provides specifications for vacuum chambers manufactured by Burhani. The chambers are made of acrylic plexiglass for air-tightness and durability. They include features such as a rounded lid edge for gasket protection, a vacuum gauge on a separate port for accuracy, and a two-sided flippable silicone gasket resistant to solvents. The document also lists vacuum chamber models in various sizes ranging from 0.5 to 13 gallons in capacity.