Here is the new American made 250 mil gas bags that is very user friendly. It has has (2) 1/4" inlets so your fuel line and inserts can be put in without cutting the ends of the bag like other brand bags being used. These are a thick bag so the insert, if it does rub the bottom of bag, it won’t cut the bag. You will see how nice these bags work better then other bags on the market. 5" long 4 1/2" wide, not including the inlet ports which are apox 1 1/2" ...