Designed for small volume - used for general filtration requirements
Complete assembly set includes:
• 15ml graduated funnel - 7741003251
• 25mm sintered glass frit support base - 7741001255 
• #5 rubber stopper - 7741003252
• High strength anodized aluminum spring clamp - 7741003253
• 125ml vacuum filtering flask - 7741003254

For viscous or proteinaceous solutions see Stainless Steel Assembly - 7741002250