in 32 offers
The lowest price for Fluval Flex Replacement Foam Block right now is $11.00 at Bespoke Aquariums, compared across 21 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 30 Oct 2026.
Fluval Flex Replacement Foam Block
Last updated at 30/10/2026 13:48:28
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 10–12 Nov $12
Fluval Spec / Flex 34L Foam Block with Handle | PeekAPaw
Delivery between 4–9 Nov $6.31
Fluval Spec Flex 34L Replacement Foam Block
Free delivery between Tue – Wed
Fluval Spec Flex 34L Replacement Foam Block
Delivery between 5–11 Nov $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 Flex 34L Replacement Foam Block
Delivery $15
| 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 10–12 Nov $12
Fluval Spec / Flex 34L Foam Block with Handle | PeekAPaw
Delivery between 4–9 Nov $6.31
Fluval Spec Flex 34L Replacement Foam Block
Free delivery between Tue – Wed
Fluval Spec Flex 34L Replacement Foam Block
Delivery between 5–11 Nov $9.70
| 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 |
