Penn-Plax Smallworld Filter SWF1 Lot of 4 Aquarium Fish Tank Filtration Units

Lot of 4 Penn-Plax Smallworld Filters, Cat # SWF1, for healthy fish and clear water.  These disposable aquarium filtration units are designed for small fish tanks and help remove harmful gases, odor, and discoloration. Packaging indicates they fit a variety of tank shapes and sizes and are intended as quick, easy filtration units for small aquarium setups.  Item details:  - Brand: Penn-Plax  - Model: Smallworld Filter  - Cat #: SWF1  - Quantity: 4 filters  - Aquarium filtration units  - Designed for small fish tanks  - Helps reduce odor, discoloration, and harmful gases  - Disposable filter units  Condition:  - New old stock  - All 4 are sealed in original packaging  - Packaging shows age, shelf wear, bent corners, and storage wear  - Some packages show heavier wear around the hang tab area  - Please review photos carefully for exact cosmetic condition  Includes:  - 4 Penn-Plax Smallworld Filter SWF1 units in original packaging  Please verify compatibility with your aquarium or filter setup before purchase.  Thanks for supporting our small business. We ship quickly, pack carefully, and are always happy to answer any questions.