This a 1977 Gelman Filtration/Fermentation 316 Stainless Steel Pressure Vessel. Preasurable up to100 psig. Equipped with all peripherals including a sampling 1/4" ball valve. Capacity 19 Liters 5 Gallons no. 152081. Equipped with 0- 100 psig gauge. Can be operated at RT up to 38 deg C (100 deg F) Condition is "Used". Shipped with USPS Priority Mail.