The new Hard Seat VHS Micro-Dispense Valve offers repeatable, non-contact dispensing of fluids in the nano- to microliter range. It features a precision zirconia ball and seat instead of a traditional elastomeric seal, thereby ensuring resistance to aggressive fluids, such as dimethyl sulfoxide. The valve is designed for two-way, normal closed operation, and the wetted parts comprise stainless steel, polyether ether ketone (PEEK) and zirconia. — Lee Products Ltd., Gerrards Cross, Bucks, U.K.