Yep, that's it. Just BAC water. Nothing else. Each mL containts 0.9% Benzyl Alcohol (ratio that prevents bacteria from growing in it). I use distilled water. 100 mL of bacteriostatic water, will contain 90 units of benzyl alcohol (0.9 mL). Going to be finishing off my bottle top filters, then will be using the glass filter for the future. Those membranes as they are hydrophobic will be wetted before usage. Hydrophobic filters will not wet in water but will wet in low surface tension liquids, for example, organic solvents such as alcohols. Some BA is ran through it to ensure that it is wetted, then aqueous solutions also will pass through. All glass, filters, and claveable plastic is washed, then soaked in a mixture 90% isopropyl alcohol and hydrogen peroxide. They are then claved at 285°F for 180 minutes. $40 for 100mL $25 for 50mL $5 to cover conversion fees No shipping. BTC or LTC only.