Designed for seamless compatibility with Penguin Power Filters The ELXXROONM Rite-Size C cartridges come in a 24-pack built to fit MarineLand Penguin Power Filters, including the PRO models 275/375 and the Penguin Power Filters 200/350

This means a straightforward swap without guesswork, so you can focus on enjoying a clean, balanced aquarium

What sets these cartridges apart is the combination of materials and construction

Each unit uses high-quality cotton media for mechanical filtration and coconut shell activated carbon for adsorption of impurities

The result is a reliable triple filtration effect that helps maintain clarity while supporting a stable flow through the filter chamber

In practical terms, you may notice clearer water, more consistent flow, and less maintenance time between changes when used as part of your routine

The 24-pack provides a convenient supply to keep you stocked for weeks at a time, reducing the need to reorder frequently

Key benefits at a glance: Compatibility with MarineLand Penguin Power Filters models PRO 275/375 and 200/350

High-quality cotton for physical filtration and debris capture

Coconut shell activated carbon to help reduce odors and dissolved impurities

Snug fit and durable construction to minimize bypass and leakage

Quick installation helps you get back to enjoying your tank sooner

Rinse the cartridge under cool water to remove carbon dust, align the bottom key slot, and insert it into the filter chamber until it sits fully in place

A proper seat is essential for optimal performance and steady water flow

Maintenance notes to consider: timing is typically every 2–4 weeks, depending on tank load, feeding habits, and routine cleaning

Regular checks on flow rate and water clarity will help you decide when a fresh cartridge is in order

Quality you can trust: ELXXROONM adheres to strict quality control to ensure compatibility with MarineLand filters

If you have questions, our team responds quickly with courteous support and, if needed, a pack or refund within 24 hours

FAQ Q: Are these Rite-Size C cartridges compatible with Marineland Penguin filters

A: They fit Penguin PRO 275/375 and 200/350 models; ensure correct seating for results

Q: How often should I replace the cartridges

A: Replace every 2–4 weeks based on use; monitor water clarity and filter flow to decide