Penn Plax Air Stone
Reliable quiet motor Item Specifications: Cascade 300: Flow: 70 gph Tank Size: Up to 10 Gallons Power: 6W Height: 6 Cascade 400: Flow: 110 gph Tank Size: Up to 20 Gallons Power: 7. Reliable quiet motor Item Specifications: Cascade 300: Flow: 70 gph Tank Size: Up to 10 Gallons Power: 6W Height: 6 Cascade 400: Flow: 110 gph Tank Size: Up to 20 Gallons Power: 7. Reliable quiet motor Item Specifications: Cascade 300: Flow: 70 gph Tank Size: Up to 10 Gallons Power: 6W Height: 6 Cascade 400: Flow: 110 gph Tank Size: Up to 20 Gallons Power: 7. 3W Height 10 Cascade 600: Flow: 175 gph T [. ]. The Penn Plax (R) Cascade Internal Aquarium Filters are completely submersible and provides crystal clear water making it perfect for any aquarium or partial fill amphibian tanks as well. 3W Height 10 Cascade 600: Flow: 175 gph T [. ]. The Penn Plax (R) Cascade Internal Aquarium Filters are completely submersible and provides crystal clear water making it perfect for any aquarium or partial fill amphibian tanks as well. The Penn Plax (R) Cascade Internal Aquarium Filters are completely submersible and provides crystal clear water making it perfect for any aquarium or partial fill amphibian tanks as well. The Cascade Internal Filters by Penn Plax (R) are proven to be reliable, quiet, easy to clean, and cost effective. The Cascade Internal Filters by Penn Plax (R) are proven to be reliable, quiet, easy to clean, and cost effective.