: The outlet part of the hose is very well adapted to prevent the accumulation of oil surface film, while efficiently circulating water. & nbsp; < br /> Getting basic, easy, simple, professional, crystal, cool, beautiful! It is made of very high quality crystal glass.?and great handcrafted technology, so each item may have a little difference, but it’s still perfect! & nbsp; It fits & agrave;?many medium-sized tanks?large. & nbsp; Glass made & agrave;?High quality handmade. The transparency of the glass gives a superb appearance.?your aquarium. & nbsp; Create an elegant curved line in the aquarium in the shape of a box. & nbsp; The outlet pipe has a special shape to create it. create a Spiro effect. & nbsp; Deliver clean water to the filter with an appropriate water flow rate. & nbsp; & Agrave;?use with a filter & agrave;?cartridge. & nbsp; CHOOSE: & Eacute; surface accumulator n & deg;?1 13 mm for 12/16 pipe Surface accumulator n & deg;?2 17 mm for pipe 16/22 pine poppy n & deg;?3 13