The Dropout DO900S is a revolutionary 3/4" multi-stage compressed air filter and water separator. Constructed from 304 Stainless Steel, this "sealed for life" unit is designed for heavy-duty industrial applications where moisture-free air is critical, such as precision spray painting and CNC machining.
Why Choose the Dropout DO900S?
Unlike traditional cyclonic separators or membrane filters, the Dropout DO900S requires no replacement filter elements and no mains power. It maintains 99.9999% efficiency even during pulsed flows or stop-start operations, making it the ultimate "fit and forget" solution for your compressed air system.
- 99.9999% Liquid Removal: Effectively eliminates bulk water and oil aerosols.
- 1 Micron Particle Filtration: Removes solid contaminants down to 1 micron.
- Zero Maintenance: No consumables to buy, replace, or dispose of.
- Low Pressure Drop: Designed to maintain system pressure without the clogging associated with standard filters.
Technical Specifications
| Part Number | DO900S (Stainless Steel) |
| Inlet/Outlet Connection | 3/4" BSPT |
| Rated Flow Rate | 900 l/min (32 cfm) |
| Maximum Pressure | 15 Bar (217 psi) |
| Material | 304 Stainless Steel |
| Water Storage Capacity | 290 cc |
| Drain Type | Manual (Compatible with DOAD128 Auto Drain) |
Advanced Point-of-Use Protection
The DO900S is frequently used as a stand-alone replacement for traditional water separators and coalescing filters. Its unique internal geometry forces air to expand and cool rapidly, causing water to dropout of the air stream instantly. For maximum efficiency, we recommend pairing this unit with the Dropout Auto Drain to ensure constant discharge of collected fluids.
Key Applications:
- Automotive Refinishing & Spray Booths
- Food Processing & Packaging
- High-Precision Pneumatic Tools
- Point-of-Use moisture removal for remote air lines
GUARANTEED DRY AIR WHEN INSTALLED AT POINT OF USE.
FEATURES
✔ 32 cfm/900 LPM maximum* flow rate
✔ 15 bar(g) maximum pressure
✔ 1.0 micron particulate removal
✔ 3/4" BSPT Inlet/Outlet connection
✔ Stainless Steel construction for long life
BENEFITS
✔ 99.999% liquid water removal ...
✔ No consumables
✔ Virtually maintenance-free
✔ No mains power
✔ Easy to install
✔ All In One particle remover (removes water & oil in liquid & aerosol, solid particles, micro-organisms … etc)
✔ Patented multiple impact technology (does NOT use cyclonic technology, unlike traditional water separators)
✔ Instantaneous recovery from pulsed flows or stop-start
For additional benefits, we recommend you fit a Dropout Auto-drain
✔ Fit & forget
✔ Easy to install
Save money, Save energy, Save time



- Short Description:
DropOut All In One Water & Partical Filter DO900S