uxcell Fish Tank Under Gravel Filter Filtration, 140 x 70 x 12mm Product Name : Aquarium Under gravel Filter; Fit for : Aquarium, Fish Tank; Material : Plastic Each Size : 140 x 70 x 12mm/5. 5" x 2. 8" x 0. 5"(L*W*T); Total Size : 280 x 140 x 60mm/11" x 5. 5" x 2. 4"(L*W*T) Tube Size(Approx. ) : 32 x 2. 5cm/ 12. 6" x 1"(H*D); Air Line Hose Size : 50. 5 x 5mm/2" x 0. 2"(L*D) Air Stone Size : 2. 5 x 1. 4cm/1" x 0. 6"(L*D); Main Color : Black, Clear Weight : 420g; Package Content : 28 x Fish Tank Under gravel Filter, 1 x Tube, 1 x Air Hose Line w Air stone