in 25 offers
The lowest price for Fluval Flex Replacement Foam Block right now is $11.00 at Bespoke Aquariums, compared across 18 retailers.
The all-time low was $9.99 on 5 Sept 2026 — today's price is 10% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 8 Oct 2026.
Fluval Flex Replacement Foam Block
Last updated at 08/10/2026 04:10:33
Fluval Spec Foam Filter Block, Replacement Aquarium Filter Media, A1376, Large Breeds
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fluval Spec Flex 34 and Evo Foam Filter Bloc
Delivery between 19–21 Oct $12
Fluval Spec Flex 34L Replacement Foam Block
Delivery between 14–20 Oct $9.70
Fluval Spec, Flex 34 and Evo Foam Filter Block
Delivery $11.95
"Fluval Spec|Evo|Flex Foam Block Filter Media Replacement 34Ltr"
Delivery $9.90
Fluval Spec Flex 34L Replacement Foam Block
Delivery $15
Fluval Spec Flex 34L Replacement Foam Block
Delivery $15
Fluval Spec Filter Block Replacement Foam
Free delivery between Fri – Mon
Fluval Spec Filter Block Replacement Foam
Free delivery between 9–15 Oct
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fluval Flex 57L Replacement Foam Block (A-1375)
Delivery between 11–19 Oct $10
| Filtration Capacity | 10 L, 19 L |
| Product Type | Filter Block |
| Compatible With | Fluval Spec aquarium series |
| Material Type | Foam |
| Efficiency | Traps large particles and debris |
Fluval Spec Foam Filter Block, Replacement Aquarium Filter Media, A1376, Large Breeds
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fluval Spec Flex 34 and Evo Foam Filter Bloc
Delivery between 19–21 Oct $12
Fluval Spec Flex 34L Replacement Foam Block
Delivery between 14–20 Oct $9.70
Fluval Spec, Flex 34 and Evo Foam Filter Block
Delivery $11.95
"Fluval Spec|Evo|Flex Foam Block Filter Media Replacement 34Ltr"
Delivery $9.90
| Filtration Capacity | 10 L, 19 L |
| Product Type | Filter Block |
| Compatible With | Fluval Spec aquarium series |
| Material Type | Foam |
| Efficiency | Traps large particles and debris |
