Full instructions included. Change every four to eight weeks. All natural, non-toxic water treatments included. Includes acrylic safe cleaning pad to remove algae with ease. A true “one size fits all” filter for the biOrb aquariums.

Color: White. Style: Modern. Specific Uses For Product: Keep tank water clear. Shape: Round. Item Weight: 0.1 Kilograms. Item Dimensions LxWxH: 4.75 x 1.77 x 7.5 inches. Tank Volume: 4 Gallons. Material: Acrylic. Target Species: Fish. Brand: BiOrb. Date First Available: April 27, 2004. Best Sellers Rank: #5,079 in Pet Supplies. Customer Reviews: 4.7 out of 5 stars 4,785 ratings 4.7 out of 5 stars. : B000BU4UF0. Target Species: ?Fish. Size: ?No size. Included Components: ?As shown in image. Style: ?Modern. Part Number: ?46014. Manufacturer: ?biOrb. Number of Items: ?1. Material: ?Acrylic. Color: ?White. Model Name: ?BiOrb Service Kit. Country of Origin: ?United States. Brand Name: ?BiOrb. Item Weight: ?0.1 Kilograms. Item Dimensions LxWxH: ?4.75 x 1.77 x 7.5 inches. Package Weight: ?0.1 Kilograms. Item Package Dimensions L x W x H: ?5.2 x 4.92 x 2.01 inches.