Stainless Steel (SS) Drum Filters
Best for: Heavy-duty, industrial-scale RAS, marine (saltwater) systems.
Highly durable – Resistant to physical damage and corrosion (especially SS 316 for saltwater).
Long lifespan – Can last 15+ years with proper maintenance.
High-pressure resistance – Suitable for large systems with high flow rates (100-1000 m3/h).
2.Polypropylene (PP) Plastic Drum Filters
Best for: Medium-scale RAS, freshwater systems, budget-conscious setups (10-100 m3/h).
Corrosion-resistant – Good for freshwater.
Lightweight – Easier to install and handle.
Lower cost – More affordable than stainless steel.
For large commercial RAS (especially saltwater): Stainless steel (best long-term investment).
For freshwater RAS on a budget: Polypropylene (cost-effective).