The "storage" type are provided with round lid (diam. 30/40 cm) with an hermetic closing of hatch, a vent valve and level indicator. The variable capacity tanks are provided with a floating lid with air pump and inflatable gasket. All tanks are provided with 1 spigot or 1 valve + 1 spigot (Moplen) and 1 waste valve* (* waste valve on an horizontal tubular extension).
These conical bottom containers are provided with a spigot/valve on the bottom: it allows to eliminate impurity, dregs, etc. avoiding some transfers.
On demand: 1)stainless steel valves and on some models, many optional features (sample tap, thermometer, manway, etc. etc); 2) many other sizes (1.500, 2.000, 2.500, 3.000, 4.000, 5.000, 6.000, 8.000, 10.000, 15.000, 40.000, etc. etc.); 3) many different models of tanks: fermenters/fermentine-storage tanks, etc.