Perfect Compatibility:
Specifically designed for the Betta Premium Aquarium Kit, 2.6 US Gal / 10 L (Item #10498), for Fluval Betta Series 2.5 and 2.6 gallon aquariums, precisely matching the dimensions of the original diffuser chamber. It ensures a tight fit, uniform water flow, and eliminates issues like side leakage or bypass flow.

Maintains Crystal-Clear Water
This replacement filter media is essential for preserving crystal-clear water quality and fish health. It helps break down harmful ammonia and nitrites, reduces the impact of frequent water changes on water quality, and provides a cleaner, safer environment for your beloved betta fish or other small aquarium inhabitants.

Size:
Length: 6.73cm/2.65 in
Width: 4.31cm/1.7 in
Height: 1.24cm/0.49 in

Easy to maintain：
This betta tank filter replacement is designed for hassle-free replacement, allowing quick swaps during routine tank maintenance. It helps maintain optimal filtration in betta fish tank filters without a complicated setup.