LTWHOME Replacement Foam Sets Fit for All Pond Solutions EF-Booster Fish Tank Aquarium External Filter (Pack of 6 Sets) Change every 3 month and

Change every 3 month and easy to replace

Safe on most types of hard surfaces and could l ocks in dirt and moisture

- Type: Compression Union

This is not a Sienna OEM product and is not covered under any Sienna manufacturer's warranty

but it will remain odor free for the life of the sponge

LTWHOME Replacement Foam Sets Fit for All Pond Solutions EF-Booster Fish Tank Aquarium External Filter (Pack of 6 Sets) Change every 3 month andPack include: Blue Coarse Foam x 6, White Medium Foam x 6, Black Fine Foam x 6. Custom designed and manufactured for EF BOOSTER fish tank filter. Provide efficient water flow with less clogging for long lasting filtration. Safe, washable and reusable.