LTWHOME Compatible Poly Pads Suitable for Juwel Compact/Bioflow 3.0 Filters (Pack of 12) Foam size:100mm x 100mm x 12 mm These Poly pads to compatible For the Juwel Compact / Compact H / Bioflow 3.0 filter. High quality,Performs mechanical filtration! Provides efficient water flow with less clogging for long lasting filtration Good for freshwater and saltwater environments.