⭐ Key Features

•COMPATIBLE FILTER MODELS – Compatible with Aqua-Tech 20-40 & 30-60 power filters using EZ-Change #3 cartridges. Also compatible with Marineland Penguin PRO 275/375 and Penguin 200/350 power filters using Rite-Size C cartridges. Verify the model and cartridge size before ordering.

•COTTON MEDIA & ACTIVATED CARBON – Cotton media helps capture visible aquarium debris and fish waste, while activated carbon provides an additional filtration layer for routine aquarium care.

•12-PACK REPLACEMENT SUPPLY – Includes 12 blue aquarium filter cartridges for regular replacement. Replace every 2–4 weeks or as needed based on aquarium conditions and filter performance.

•Easy to Replace Rinse the cartridge with cool water before first use, remove the old cartridge, and slide the new one into the filter slot. Quick replacement without tools.

•CHECK THE SIZE – Compare the width, height and thickness shown in the listing with your current cartridge before purchase. Compatible replacement; not an original Aqua-Tech or Marineland part.

🛠️ Specifications

• Brand : Hedday
• Color : Blue-12PCS
• Unit : 12 Count
• Included components : 12 pack aquarium filter
• Ingredients : cotton and activated carbon
• Item highlights : Aquarium Filter Cartridges, EZ-Change #3 Fish Tank Power Filter Replacement, Capture Debris Odors For Cleaner Water, 12 Pack
• Number of items : 12
• Package quantity : 1
• Size : 5.74*6.5 in
• Specific uses for product : Indoor
• Target audience keyword : fish
• Type : PET_SUPPLIES
• Item dimensions : H: 6.3 / L: 9.4 / W: 7.8 (Weight: 1.59)
• Package dimensions : H: 6.1 / L: 7.7 / W: 7.2 (Weight: 2.09)