GSI, Leather Flask w/ Funnel - 4 oz. All Camping Accessories >>> Camping Accessories by GSI More details and ordering info. Corroision resistant, polished stainless steel is precisely constructed into the highest quality flask and funnel combination. The flask features a metal-hinged captive top and a streamlined shape that's perfect for the hip pocket. The funnel allows for no-spill filling the easy way. User input on Leather Flask w/ Funnel - 4 oz. by GSI: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines