. Advanced Pre-Filter Cage Prevents The Pump From Clogging. Comes Complete With Separate 1" Control Valve, 1", 3/4" And 1/2" T-Piece Hose Tails. Valved Fountain T-Piece, 20Cm Extension Pipe, Bell Jet, Foam Jet And Double Daisy Jet Fountain Heads. Optional Foam Pre-Filter Included In Carton.