TECOTAINER-Blockbottom Bag The TECOTAINER-Blockbottom Bag is a variety of the TECOTAINER Bag. The bag has a converted bottom and can immediately be used as an insert for the cardboard. ProductsTECCOTAINER BAG TECOTAINER-Blockbottom Bag TECOCASK Roundbottom bags TECOBAG for gas analysis VERMICULITE