Open box and unused. Still in box see photos. Box may have some wear/tear 5 Gallon Tempered Glass Lid Vacuum Chamber with Pump, Degassing Chamber Kit with 3CFM 1 Stage Vacuum Pump Without Oil, Perfect for Stabilizing Wood, Degassing Silicones, Epoxies and Essential Oils 3CFM 1/4HP Single Stage Vacuum Pump, Direct Drive Motor is easy to start. tempered glass stainless steel container is in high strength, very durable and can withstand up to 160ºF. The tempered glass lid is durable and sturdy, which is specially designed for stabilizing wood and experiments with volitile compounds, and can provide a good visibility for work, it is bulletproof. The vacuum pump is equipped with 1 silencer to reduce motor vibration and equipment noise, so it can run quieter. and it comes with an oil viewing window so that you can easily monitor the oil level and quality, prevention of oil deficiency. Intelligent radiator protects itself and prevents it from burning out when something is stuck. Built-in thermal protection can avoid burning the machine. And anti-skid rubber shock absorption and seismic resistance can extend the machine life. Durable brass fittings fit all vacuum pump ports. 50 micron air filter reduces air flow back into the chamber for purging and prevents dust and debris from entering the chamber. 4.75" x 4.75" non-stick silicone gasket allows you to easily remove mixtures. Max vacuum rates to 29.9inHg at sea level. Our vacuum chamber kit can be perfectly equipped with single or dual stage 3 to 9 CFM pumps. Suitable for household air conditioning, automobile maintenance, vacuum packaging, refrigerator vacuum, industry, perfect for stabilizing wood and experiments with volitile compounds, etc. 2 See less