Reverse Osmosis Replacement Filter, 400 GPD, 24-Month

Reverse osmosis replacement filter delivers cleaner, better-tasting water for daily drinking and cooking with high-flow performance. Built for tankless under-sink systems, this 9-stage RO cartridge uses a 0.0001 μm membrane to help reduce lead, chlorine taste/odor, and rust while resisting clogging. Twist-in water entry and a 360° rotating inlet support consistent filtration and easier alignment during installation.

• Delivers up to 400 GPD flow to keep filtered water available for busy households.


• Filters with a 0.0001 μm RO membrane to capture fine particles beyond standard filters.


• Helps reduce lead, chlorine, and rust for fresher-tasting water at the sink.


• Enables tool-free changes—twist and pull replacement without moving the system.


• Fits compatible SS-002 under-sink RO systems with a leak-resistant, rotating inlet design.

Stop juggling frequent cartridge swaps and slow flow. This long-life RO filter is designed for up to 24 months of use under typical conditions, helping you maintain consistent water quality with minimal downtime. The rotating inlet simplifies positioning in tight cabinets, while the quick-change design supports fast maintenance when it’s time to replace. Keep a spare on hand so your under-sink filtration stays ready—grab yours today.

• Type: 9-stage reverse osmosis filter cartridge


• Capacity: 400 GPD


• Lifespan: up to 24 months / 2100 gallons


• Membrane rating: 0.0001 μm


• Operating water temperature: 41–100.4°F (5–38°C)


• Dimensions: Φ3.94 × 13.43 in (Φ100 × 341 mm)


• Net weight: 2.78 lb (1.26 kg)


• Housing material: plastic


• Inlet: 360° rotating


• Compatibility: SS-002 under-sink RO system