Fluval aquarium lid planning
Built around your Spec 16 US gal (10525).
Use Keepr's research-backed Fluval Spec 16 US gal (10525) profile as a measured starting point. Verify every estimated value and equipment opening on your own tank before approving production.
Some geometry is estimated or derived from related documentation and must be checked against the exact aquarium.
- Published outside footprint
- 546 × 290 mm (21.50 × 11.42 in)
- Pane construction
- Estimated 4 mm; verify every pane
- Builder support
- Starting profile available
Evidence
What is documented
- Published outside footprint: 546 × 290 mm (21.50 × 11.42 in).
- Pane construction: Estimated 4 mm; verify every pane.
- Some geometry is estimated or derived from related documentation and must be checked against the exact aquarium.
- Best-supported 4 mm working estimate from matching Fluval aquarium specifications; Fluval does not publish this model's pane thickness.
- Temporary end-chamber depth calibrated against every verified end filtration chamber in this catalog (59-80 mm across tanks 500-762 mm wide); the manufacturer does not publish this model's chamber footprint, so measure it before ordering.
- Catalog evidence reviewed 2026-07-24.
Design guidance
Plan the lid around this tank
- Available layout orientations: Overflow / filtration on left, Overflow / filtration on right.
- The builder may show a temporary factory-opening estimate. Replace its size and position with measurements from your tank.
- Choose section seams so each printed frame stays practical to handle without crossing an overflow or light mount.
Process
From profile to production drawing
- Match the research to the exact tank and generation.
- Measure the lid seat and every equipment opening.
- Design the lid and review the live quote.
- Approve the production drawing before checkout.
Questions
Before you build
Do I still need to measure my Fluval Spec 16 US gal (10525)?
Yes. Confirm the exact model and generation, measure your own tank and equipment, review every opening, and approve the production drawing before ordering.
What does “Reference profile” mean?
Some geometry is estimated or derived from related documentation and must be checked against the exact aquarium.
How is a Keepr custom lid priced?
Keepr lids are priced at CA$0.30/cm³ of finished printed material, including supports and printed accessories. See your exact quote in the builder. Shipping and taxes are calculated at checkout.
What does the Keepr Fit Guarantee cover?
You measure your tank and approve the production drawings. We manufacture to that approved design. If the lid still does not fit, Keepr will remake it free under the Fit Guarantee terms. You pay shipping for the remake.
Research trail
