4-in-1 Aquarium Submersible Pump Replacement Filter Cotton (CHJ502/602/902/1502, Micro Water Pump)

Restore your pump's filtration performance with this genuine 4-in-1 Replacement Filter Cotton! 🧹

• ✅ OEM Replacement - fits CHJ502, CHJ602, CHJ902, and CHJ1502 submersible pump models precisely.
• 🧫 Dual Filtration - cotton media provides both mechanical particle capture and biological bacteria hosting.
• 🔄 Regular Maintenance - replacing filter cotton every 4–6 weeks keeps pump performance at its peak.
• ✂️ Pre-Cut to Size - ready to install without trimming — just open and drop in.
• 🐠 Cleaner Water - fresh filter cotton restores full flow rate and traps fine waste particles effectively.