I bought a Hayward leaf canister, model 560, to put in-line with my pool cleaner and vacuum. It's a petty simple construction. The inflow has a female port and the outflow has a male connector. If I connect it t my vacuum, which has a male connector on it, it will fall off if it gets bumped by the pole, which is pretty often. My pool cleaner won't work correctly with it attached since it changes the weight and balance of it. What I need is a section of hose with a male connector on one end and a female on the other, but both my local pool stores look at me like I have three heads when I ask them about one. Doing a search on Amazon for one comes up negative. You would think this should be a simple thing to acquire but I have been chasing this issue for months.