Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.
x
Sorry, Something went wrong!
Penn-Plax Cascade 600 Replacement Bio-Sponge - 1 Pack - Black, 2.5x3x5.5-in
✅ In stock
⭐ Lowest price we've tracked
F
Grade
Analysis Confidence
90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 25, 2026 7:21 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 🏷️The listed retail price is trimmed by 13% at checkout.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Kens Fish
🚚 Shipping
Free Shipping
Product Details
✓Reliable Filtration Performance - Keep your aquarium fresh and cleaner! This replacement bio-sponge for the Cascade 600 (CIF3) captures dirt and debris, supports steady water flow and improved tank clarity.
✓Healthier Aquatic Life - Promotes balanced water by supporting mechanical and biological filtration - perfect for creating a clean, thriving home for your freshwater or saltwater fish.
✓Easy Clean, Easy Reuse - Rinse in aquarium water, reuse, and keep filtering! Designed for long-lasting use, it helps maintain natural cleaning balance and dependable filtration with minimal effort.
✓Secure, Custom Fit - Comes with one black sponge measuring 2.5 x 3 x 5.5 Inches. Custom-shaped to fit the Cascade 600 Fully Submersible Internal Filter (CIF3) for smooth, steady performance.
✓Inspired by Penn-Plax: With decades of experience creating trusted pet products, Penn-Plax designs habitats that blend reliability and ease - helping pet owners care for their small companions with confidence and creativity.
⚙️ Specifications
1.28 ounces
Unisex-Adult
Penn Plax
Cascade 600 Replacement Bio-Sponge
CIF3FI
4.6
January 11, 2008
6.54 x 3.07 x 2.72 inches
6 x 4 x 3 inches
1.28 ounces
Penn-Plax
Fish, algae-eaters, mollusks, octopuses, rays, snails
Simply clean the Bio-Sponge in a separate container within some of your aquarium’s water.
Warranty
Penn-Plax Cascade 600 Filter Replacement Bio-Sponge (1 Sponge) – Provides Physical and Biological Filtration for Freshwater and Saltwater Aquariums
Indoor
Cascade 600 Replacement Bio-Sponge
Plastic
All Life Stages
1
Item Weight
1.28 ounces
