2016 Triton Trailers E Series 22-1E, 2016 Triton Trailers E Series 22-1E 22' Pontoon trailer, single axle Triton's 22-1E Pontoon trailer is for those who have limited and/or short distance hauling needs. The 22-1E Pontoon boat trailer is an economy trailer that has all you need for getting your boat in and out safely. Plus it has all the value you would expect in a Triton trailer.