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One BK28 trickle box unit
• 316 stainless steel micro-filter screen — captures all suspended particles ≥50 μm
trapezoidal single layer size is L2800*W450(399
leak-resistant
Air Stone 4 Inch Disc Diffuser for Fish Tank Aquarium Air Pump for pondsysyems One BK28 trickle box unitMAIN PRODUCT FEATURES: HEALTHIER WATER: This air stone works to create bubbles that will help to oxygenate and filter your water. It will help circulate the water in your tank and create a healthier environment for your aquariums fish and plants. PERFECTLY SIZED BUBBLES: These air stones are made from a quality carborundum material that promotes high density, uniform, more delicate bubbles. These beneficial bubbles are perfect for any aquarium
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