---
product_id: 2333777
title: "Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups"
brand: "penn-plax"
price: "642 Lei"
currency: RON
in_stock: true
reviews_count: 6
url: https://www.desertcart.ro/products/2333777-penn-plax-cascade-300-power-filter-hang-on-filter-quad
store_origin: RO
region: Romania
---

# 300 GPH flow rate Adjustable flow knob Double-sided media cartridges Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups

**Brand:** penn-plax
**Price:** 642 Lei
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Clarity with the Cascade 300!

## Quick Answers

- **What is this?** Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups by penn-plax
- **How much does it cost?** 642 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/2333777-penn-plax-cascade-300-power-filter-hang-on-filter-quad)

## Best For

- penn-plax enthusiasts

## Why This Product

- Trusted penn-plax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Crystal Clear Waters:** Experience pristine aquarium clarity with minimal effort.
- • **Bio-Sponge Innovation:** Promotes beneficial bacteria growth for a healthier ecosystem.
- • **Customizable Flow Control:** Easily adjust water flow for feeding or maintenance.
- • **Versatile for All Aquariums:** Perfect for both freshwater and saltwater setups.
- • **Advanced Filtration Technology:** Double-sided cartridges trap debris and eliminate toxins.

## Overview

The Penn-Plax Cascade 300 Power Filter is a high-performance hang-on filter designed for aquariums up to 100 gallons. It features a powerful 300 GPH flow rate, adjustable water flow, and advanced filtration with double-sided media cartridges, ensuring crystal clear water and a healthy aquatic environment.

## Description

Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups

## Features

- QUIET & EFFICIENT: The Cascade 300 Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter pushes water at 300 Gallons per Hour (GPH) for tanks up to 100 Gallons in size. It’s great for Freshwater and Saltwater aquariums.
- ACCOMMODATING: The adjustable flow knob allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The hang-on design is constructed for safe mounting. The lift tube extends between 8. 25” (min) and 12. 25” (max). Please be aware that the filter indeed does make some noise.
- EXTREMELY BENEFICIAL: This Cascade filter utilizes disposable, double-sided media cartridges that contain Activated Carbon and Poly Fiber Floss. The included cartridge traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquarium’s water. Media cartridges are recommended to be replaced once a month.
- REVOLUTIONARY: The Cascade 300 Power Hang-On Filter features a Bio-Sponge cartridge that optimizes colonization of anaerobic bacteria, and is independent from the first stage filter media. In addition, our Bio-Falls system enhances water oxygenation, and aids with removing ammonia and nitrate.
- OVERALL MEASUREMENTS: 8. 25” (H) x 11. 25” (W) x 6. 25” (D)

## Images

![Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups - Image 1](https://m.media-amazon.com/images/I/71HCWp6gcAL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Hey guys, what is the voltage? does it go from 110 v to 240v? i don't see it on amazon uk. if it doesn't work with 240v, what can i do? thanks.**
A: Thanks for your question. This filter is 110V and there's no way to adjust it to 240V for England. We wouldn't recommend running this filter with a power converter, so your best bet may be to stop by your favorite local aquarium store to purchase your filter.

**Q: I always buy the replacement carbon filters but where are the 2 black replacement foam sponge filters?**
A: When I buy these filters I throw away the black foam.I used the white filter fiber works so much better..and gets your water clean and clear faster..

**Q: I have a 56 gallon tall tank and need a filter that works well in this type. Will this model work well in the tall tank type?**
A: I think you will be happy with this filter. I am using one in my 200 gal fish tank I like it because 1. it is a good filter 2. It keeps the water oxygenated. ( lot's of bubbles )  :-) when I get my 75 gal tank ready I all ready have one for it.

**Q: What is the KWH for the 300 per day?**
A: idk but its probably not anything your going to notice

## Customer Reviews

### ⭐⭐⭐⭐⭐ Keep the fish alive and water fairly clear.
*by B***T on August 20, 2025*

Bought for Daughters fish tank. Fish are still alive, and seem to be happy. They don't seem to want to talk to me about it, but I think since the water is clean, and they are not dead that it is working. I think it's a 70 gallon tank, it's giant. It's quieter than the old one that died, but I don't know if the other one was loud or just loud because it was dying. So far so good. 2 months in.

### ⭐⭐⭐⭐⭐ It stood the test of time and is still working!
*by D***K on September 19, 2025*

I just checked my Amazon purchases and I bought the 300 9 yrs ago and it’s still kicking wow! I have another tank and it needs a bigger filter. For the price you can’t go wrong and this thing moves some serious water.

### ⭐⭐⭐⭐⭐ Quiet and affordable
*by A***R on July 7, 2025*

For $10 how could I say no? It’s a fantastic little filter. It has adjustable flow which is nice. I had a horrible algae bloom in my 5 gallon planted tank and made the decision to strip it wash everything and get a new filter. Strange thing happened with my sand substrate. Even though I did the slow refill with the cup to controll the dusting of the water my whole tank was black. Idk what a mess. Particles everywhere. So this little filter had quite the task at hand. It took my tank from completely black and couldn’t see a single thing to almost clear again. One particle at a time. I rinsed the filter ever time I walked by and remembered. It has really shown what it’s capable of.

## Frequently Bought Together

- Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups
- Penn-Plax Cascade 300 GPH Hang On Replacement Media for The Cascade 300 Filter, 3 Pack
- Penn-Plax Cascade 300 GPH Hang On Filter Aquarium Bio Sponge Replacement; 2 Pack

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-23*