Thanks for the responses. My main concern was for any lead used on a brass fitting or chemicals from a plastic fitting that contaminate the drinking water coming through the hose. It seems to me also that a brass garden hose fitting should be no different when it comes to potable water than the brass fittings used on drinking water hoses.
I know that I can buy a four foot hose from Camping World but there are no Camping World stores within 200 miles from here and it is not worth the shipping and the cost of the hose when I have three extra 25 foot fresh water hoses sitting in my shed.
I will get a brass fitting with a secure connection and cut one of the 25 foot hoses down. Thanks!