The P-9 is plastic moulded, and has a maximum vacuum of 600 mm HG with 200 ml/stroke. The pump is a piston pump. The jar measures 1 x 1 liter PC, and the filter is a bacterial filter autoclavable. The tubing is silicon and measure 8 mm ID x2mtr. The gauge vacuum has a 5 cm diameter with 0-760 HG. It measures 33x18x30 cmd, and weighs 2.5 kgs. The overflow safety is mechanical, and it comes with an optional tool kit, filter paper, and push-in nozzle.