Product review (5 stars): These worked out great as they connected right up to the clean out ...
I purchased these to do an annual cleaning of my tankless hot water heater.  These worked out great as they connected right up to the clean out valves and my sump pump.  I purchased these as opposed to a garden hose because there are 2 female ends, which is what I needed and a standard garden hose wouldn't work because one end is female and the other is male.