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This is the original filter pad sponge for SUNSUN/PERFECT/GRECH/ SUPERHW-304B, HW-404B AQUATOP CF-500 Canister filter 1.Provides both mechanical and biological filtration 2. Promotes nitrogen cycle reduce the death rate of fish 3. Can be used again after cleaning
- 12x White Filter Pads
- 4x Blue Filter Pads
- 8.5" (L) x 8.5" (W) x 0.75" (H)
16PCS Aquarium Replacement Filter Pads for SUNSUN GRECH HW-304 HW404B
- Brand: SunSun
- Product Code: 304B_16pcs
- Note: Aquatica Plus is an Amazon Affiliate and may receive payment for items purchased on Amazon.