Whatman® Syringeless Filters are preassembled, convenient filtration devices for removing particulates from samples. They replace syringe coupled filtration devices with single, disposable units. Mini-UniPrep™ is a preassembled device consisting of a 0.4ml capacity chamber and plunger. Autovial™ is comprised of a graduated filter barrel and a plunger. The proven design features an integral filter, built-in air purge and a support stand that protects the recessed slip-luer tip. They are available in a 5 ml and 12 ml volume capacity.