VWR Vwr Mat Dbl Frame 31x50 30l Wh PF 3150 31 W01 Unit EA. Frames have non-skid backing and are hinged in the middle to connect two mats to cover twice the area yet reduce storage and shipping requirements. Frames are re-useable with two 24x30 Purestep refills. Specifications for VWR Vwr Mat Dbl Frame 31x50 30l Wh PF 3150 31 W01: Manufacturer: Advantech Manufacturing Available quantity options: Each Color: White Package Contents: VWR Vwr Mat Dbl Frame 31x50 30l Wh PF 3150 31 W01 / 89097-502 The VWR Vwr Mat Dbl Frame 31x50 30l Wh PF 3150 31 W01 is a quality addition to the Advantech Manufacturing lineup. For more great deals on Laboratory Consumables by Advantech Manufacturing please browse our Advantech Manufacturing Laboratory Consumables page. VWR Vwr Mat Dbl Frame 31x50 30l Wh PF 3150 31 W01 Unit EA