GD/X gamma is designed specifically for filtering samples with a high load of particles. With a polypropylene housing free of pigments and with a WHATMAN™ GMF150 and GF/F glass microfiber prefilter (Cytiva). These filters eliminate or reduce largely the need for prefiltration of samples difficult to filter and allow for filtering difficult samples using less pressure. The GD/X syringe filters can process 3 to 7 times more volume of sample than standard syringe filters.rFor other membranes please contact us at helpdesk@scharlab.com.