With or without binders G40 Binder-free Filters High solvent resistance Higher dirt-handling capacity than glass filters with binders Made of borosilicate glass fibers woven into a porous matrix Ideal for gravimetric analyses and particulate testing G25 and G15 Glass Filters with Binders Borosilicate glass fiber matrix bonded by acrylic resin G25 filters are extra thick for increased throughput High wet strength for long aqueous filtrations and reduced media migration G20 Glass Prefilters with Binders Surface capture of particles Average retention efficiency Higher dirt-handling capacity