EHEIM
EHEIM Classic 2217 (600) External Canister Filter
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Best Aquarium Filters · head-to-head
EHEIM Classic 2217 (600) External Canister Filter vs OASE BioMaster Thermo 850 Canister Filter
A sourced, side-by-side comparison. EHEIM Classic 2217 (600) External Canister Filter is cheaper at —. Every spec and price links to its source.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | EHEIM Classic 2217 (600) External Canister Filter |  OASE BioMaster Thermo 850 Canister Filter |
|---|---|---|
| US price | — | — |
| Brand | EHEIM | OASE |
| Released | — | — |
| Type | canister | canister |
| Flow rate gph | 264 | 400 |
| Tank size gal | 160 | 250 |
| Media capacity (L) | 6 | 8 |
| Media stages | — | 4 |
| Wattage | 20 | 32 |
| Self priming | — | Yes |
| Dimensions (in) | 8.1 x 8.1 x 15.75 | 9.4 x 9.4 x 21.1 |
Sources — EHEIM Classic 2217 (600) External Canister Filter: eheim.com (verified 2026-08-01). OASE BioMaster Thermo 850 Canister Filter: aquaristikshop.com (verified 2026-08-01).
What's the difference between the EHEIM Classic 2217 (600) External Canister Filter and OASE BioMaster Thermo 850 Canister Filter?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Flow rate gph: EHEIM Classic 2217 (600) External Canister Filter 264 vs OASE BioMaster Thermo 850 Canister Filter 400
- Tank size gal: EHEIM Classic 2217 (600) External Canister Filter 160 vs OASE BioMaster Thermo 850 Canister Filter 250
- Media capacity (L): EHEIM Classic 2217 (600) External Canister Filter 6 vs OASE BioMaster Thermo 850 Canister Filter 8
- Wattage: EHEIM Classic 2217 (600) External Canister Filter 20 vs OASE BioMaster Thermo 850 Canister Filter 32
- Dimensions (in): EHEIM Classic 2217 (600) External Canister Filter 8.1 x 8.1 x 15.75 vs OASE BioMaster Thermo 850 Canister Filter 9.4 x 9.4 x 21.1