Shipping depends on the selected variant, shipping group, and destination. Review the product shipping notice and final checkout charges. Specialty items do not qualify for standard free shipping.
Shipping: $19.99 to the contiguous 48 U.S. states and Washington, DC only. No Alaska, Hawaii, territories, military addresses or international shipping. Excluded from free shipping. Mixed carts may incur additional shipping charges. Availability is subject to confirmation at fulfillment.
Genuine Fluval foam blocks capture debris in the mechanical filtration stage of compatible desktop aquariums. Each has a pull handle for easier removal.
Select the correct fit
- EVO 13.5 / SPEC 16
- EVO 5 / SPEC / original FLEX 9
- Original FLEX 15
One foam block per selected option. These are model-specific parts, not universal blocks. FLEX options refer to the original aquarium generation; do not assume compatibility with FLEX 2.0. Rinse established foam in removed aquarium water and avoid replacing all biological media at once.
Why Buy From Infinity and Beyond Aquatics?
Get personal service and practical aquarium guidance from an independent North Jersey business, with help choosing compatible equipment and support after your purchase.