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 300 Power Filter Replacement Bio Sponge, 2 Pack, Black
✅ In stock
F
Grade
Analysis Confidence
90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 4, 2026 12:54 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 is slightly above the going rate for this product — worth watching for a drop.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- ➡️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
7/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
NAVIRA.
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Effective Filtration Performance - Keep your aquarium water clean and balanced with this durable bio sponge replacement for the Cascade 300 Power Filter. It traps dirt, debris, and fine particles, maintaining healthy water clarity in your fish tank.
✓Balanced Ecosystem Support - The porous surface promotes natural biological activity, helping reduce cloudiness and odor over time while enhancing the overall filtration performance in your aquarium filter.
✓Secure, Proper Fit - compatible with Cascade 300 Power Filter, this aquarium filter pad installs easily and fits securely without gaps, preventing particles from bypassing filtration and keeping your tank fresh.
✓Durable and Convenient Design - Each pack includes two filter media pads crafted from resilient poly-fiber material for lasting use and steady water flow. Sized at 7 x 1 x 5 inches and designed in black, they fit the Cascade 300 perfectly for reliable performance with minimal maintenance.
✓Crafted with Care - With decades of aquatic expertise, Penn-Plax designs innovative fish tank filter solutions that help hobbyists create cleaner, healthier, and more enjoyable aquarium environments for their fish.
⚙️ Specifications
1.13 ounces
Unisex-Adult
Penn Plax
bio sponge
CPF510
4.5
June 6, 2010
7.68 x 3.7 x 1.34 inches
7 x 1 x 5 inches
Penn-Plax
Fish, algae-eaters, mollusks, octopuses, rays, snails
Inside Box
Amazon Warranty
CPF510
black
Cascade 300 Replacement Bio-Sponge - 2 Pack
Plastic
All Life Stages
Item Weight
1.76 ounces
Department
Unisex-Adult
