SW PRODUCTS XS Filter Cartridges 12-Pack for Aquarium – Replacement for Koller Tanks

Overview

SW PRODUCTS delivers a compact, ready-to-use filtration solution with a 12-pack of XS filter cartridges designed for small aquariums. Engineered to fit Koller Products power filters in the 1.5 to 3 gallon range, these cartridges offer a practical replacement option when routine maintenance is due.

• Activated carbon purification helps minimize odors and support clearer water surfaces
• High-efficiency filtering captures tiny particles for steadier water quality
• Three-layer design provides layered protection across the filtration path
• No assembly required—rinse briefly under cold water and insert into the filter chamber

Three-Layer Filtration Explained

The core of each cartridge is a thoughtful, multi-layer system. The primary cotton layer traps larger debris, the middle activated carbon purifies in-depth, and the final cotton layer catches finer particles. This combination aims to maintain a balanced, healthy environment for small fish and plants without demanding extra steps from you.

• Primary cotton layer for large particulates
• Middle carbon for deeper purification
• Final cotton layer for fine particle capture

Easy Setup and Maintenance

Designed for simple operation, these cartridges require no disassembly. A quick rinse removes external dust, then the cartridge is placed fully into the filter chamber. For best results, replace every 3 to 4 weeks or when you notice a drop in flow.

Size, Compatibility, and Packaging

Size Extra Small is tailored for compact power filters found in micro tanks and small setups. The cartridges are compatible with Koller Products 1.5-gallon, 2-gallon, and 3-gallon tanks, making them a practical option for many nano and display aquariums. The 12-pack format provides ongoing replacements to support routine maintenance without frequent repurchases.

Real-Life Scenarios

In a small community tank or a dedicated nano setup, these cartridges can simplify maintenance while supporting a stable water appearance. For busy households or classrooms, having a pack on hand helps maintain a predictable filtration routine and can keep routine tank care on track.