GreatFunnel system prevents dirt, dust and other contaminants from collecting on the inside funnel wall and eliminates the need for cleaning before use. Standard, screw-on caps seal out harmful contaminants that cause damage to mechanical systems. After use, the caps also keep residue from leaking onto workbenches or storage surfaces. GreatFunnel solves fluid handling problems: keeps fluids clean, helps prevent mechanical damage, and eliminates messy funnel storage. GreatFunnel saves labor, time and money. GreatFunnel uses standard caps for easy replacement.