Plastic utility funnels are inexpensive, lightweight and designed for general use. They aremade of polypropylene and high density polyethylene depending on the size.
The 162mm size has a very large throat opening.”Plastic large funnels made of polyethylene. Big plastic funnels are designed for transferring liquids.
4 liter large funnel has external ribbing for air release; 6 liter large funnel has both internal and external ribbing.
Maximum temperature for LDPE is 80°C and HDPE is 110°C.