# OASE BioMaster Thermo 850 Canister Filter: specs and price

**Price (US):** Not published (Only a EUR price could be sourced from a fetched page (aquaristikshop.com: €349.85, a German retailer), not a verbatim US-dollar figure, so priceUsd is left null rather than converted/guessed. This is a EU-manufactured product line with limited US retail presence.), as of 2026-08-01.
**Brand:** OASE
**Deskmark:** Gold Deskmark — pay-blind category standing 75/100, #2 of 14 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | Not published |
| Brand | OASE |
| Type | canister |
| Flow rate gph | 400 |
| Tank size gal | 250 |
| Media capacity (L) | 8 |
| Media stages | 4 |
| Wattage | 32 |
| Self priming | Yes |
| Dimensions (in) | 9.4 x 9.4 x 21.1 |

## Where it stands

On the spec sheet, its media capacity of 8 L is the highest of the 8, its flow rate gph of 400 is above the median of the 14, and its tank size gal of 250 is above the median of the 14.

## Frequently asked questions

**How much does the OASE BioMaster Thermo 850 Canister Filter cost?**

The OASE BioMaster Thermo 850 Canister Filter has no published US price as of 2026-08-01.

**What are the OASE BioMaster Thermo 850 Canister Filter's key specs?**

OASE BioMaster Thermo 850 Canister Filter (OASE): type canister, flow rate gph 400, tank size gal 250, media capacity l 8, media stages 4. Full sourced spec sheet verified 2026-08-01.

Source: https://www.aquaristikshop.com/aquaristik/OASE-Aussenfilter-BioMaster2-Thermo-850/788008/ (aquaristikshop.com, accessed 2026-08-01)
Corroboration: https://oase-livingwater.com/gb-en/products-a-z/family/product/p/94675-biomaster2-thermo-850-gb.html (accessed 2026-08-01)
Canonical: https://frontdeskreview.com/product/aquarium-filters/oase-biomaster-thermo-850/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl