Parts for Oase BioMaster 250 / 350 / 600 / 850
Printed PETG parts for the BioMaster 250 / 350 / 600 / 850. They take 16/22mm hose. Made to order in the USA.
These parts fit the BioMaster 250 / 350 / 600 / 850.
About the Oase BioMaster 250 / 350 / 600 / 850
This page covers the BioMaster 250, BioMaster 350, BioMaster 600, and the BioMaster 850.
The BioMaster and Thermo 250, 350, 600, and 850 all use the same hose size. We already make adapters for it.
Model numbers change over the years, so check the label on your filter to be sure which one you have.
- Hose
- 16/22mm hose
Hose sizes for this gear
- 16/22mm hose16mm inside, 22mm outside
Where to start
These are the parts we make the most of in this hose size. It is a count of what we make, not a sales ranking.
- Spray BarsPerforated return bars with even hole spacing, sized to your canister hose or PVC pipe.10 parts in this size
- AdaptersConnect a canister hose to vinyl tubing, PVC pipe, or another hose size. Push-on fit, no glue.8 parts in this size
- Lily PipesRim-hook inflow and outflow pipes. A PETG alternative to glass.3 parts in this size
Connect hoses
9 parts.
Eheim 16/22mm to 5/8 Inch Vinyl Barb Adapter
16/22mm hose to 5/8 inch vinyl
Eheim 16/22mm to 3/4 Inch Vinyl Barb Adapter
16/22mm hose to 3/4 inch vinyl
Eheim 16/22mm to 1 Inch Vinyl Barb Adapter
16/22mm hose to 1 inch vinyl
Eheim 12/16mm to Eheim 16/22mm Barb Adapter
12/16mm hose to 16/22mm hose
Eheim 16/22mm to Eheim 25/34mm Barb Adapter
16/22mm hose to 25/34mm hose
Eheim 16/22mm to 5/8 Inch Vinyl Barb Adapter, 45 Degree
16/22mm hose to 5/8 inch vinyl, 45 degree
Eheim 16/22mm to 5/8 Inch Vinyl Barb Adapter with Clamp Groove
16/22mm hose to 5/8 inch vinyl, clamp groove
Eheim 16/22mm to 1 Inch Vinyl Barb Adapter, 45 Degree
16/22mm hose to 1 inch vinyl, 45 degree
Eheim 16/22mm to 5/8 Inch Vinyl Barb Elbow Adapter, 90 Degree
A finished 90 degree elbow adapter for tight spots.
Spread the return flow
13 parts.
Spray Bar, Eheim 16/22mm Inlet, 120mm
120mm, 14 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 180mm
180mm, 14 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 200mm
200mm, 14 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 120mm, 20 Holes
120mm, 20 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 140mm
140mm, 14 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 140mm, 20 Holes
140mm, 20 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 160mm
160mm, 14 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 160mm, 20 Holes
160mm, 20 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 180mm, 20 Holes
180mm, 20 holes, 16/22mm hose inlet
Spray Bar, Eheim 16/22mm Inlet, 200mm, 20 Holes
200mm, 20 holes, 16/22mm hose inlet
Lily Pipe Inflow + Outflow Pair, Eheim 16/22mm
A matched inflow and outflow pair that hooks over your tank rim.
Lily Pipe Inflow Single, Eheim 16/22mm, Replacement
A single replacement pipe that hooks over your tank rim.
Lily Pipe Outflow Single, Eheim 16/22mm, Replacement
A single replacement pipe that hooks over your tank rim.
Guides for this filter
These pages cover this filter by name, or the hose sizes it uses.
- Fish Guard vs Shrimp Guard: Which Intake Guard Fits Your TankFish guards and shrimp guards use different slot widths. See the difference and how to pick the right intake guard for your tank.
- Which Hose Fits Your Filter: Eheim, Fluval, and JBL Hose Sizes by ModelEheim, Fluval, and JBL all size their hose differently. Find your model, read its size, and see the adapter that bridges the gap.
- Eheim Classic Hose Size: 2213, 2217, and Every Model's Hose DiameterEvery Eheim Classic model sizes its hose a little differently. See the exact intake and discharge size for the 150, 250, 350, 600, and 1500XL, straight from Eheim's own spec pages.
- Canister Filter Spray Bar vs Stock Outlet: Aquarium Flow for Planted TanksA spray bar spreads your filter's return across several holes instead of one stream. See when that helps, and when your stock outlet is already enough.
- Lily Pipe Setup and Positioning for Planted TanksSoftening the hose, mounting position, depth, and CO2 diffuser placement, in one setup guide. Works whether you run glass or PETG lily pipes.
- Glass vs PETG Lily Pipes: Which Lily Pipe Should You BuyGlass lily pipes look great but can crack or shatter. See how PETG compares on fit, clarity, color, and durability.
Not sure which one you need?
The Fit Finder walks you through your hose size step by step. The Custom Builder lets you set the size yourself.
Browse by size
Need something for the BioMaster 250 / 350 / 600 / 850 that is not here? Tell us what you run and we will add it to the list we build from.
Brand names on this page belong to their own companies. We use them only to show which gear these parts are made for. TankRig is not part of those companies, and they do not back or approve our parts.