Inline leaf trap canister to trap leaves, large debris...and even the odd frog!  Traps the debris in a mesh bag within the canister to prevent it from reaching and clogging pipework and filtration equipment.  A vital piece of maintenance kit for pools surrounded by trees.  

Has a short piece of hose to attach leaf trap to suction point/skimmer, your normal 1.5" vac hose then attaches onto the other end of the leaf cannister