Aquatop BREZA Aquarium Diffuser Air Stone Black,

Easy to use Air Stone. Simply attach to air pump using airline tubing and place in your desired location within your aquarium. May be buried under gravel. 1 Inches, 1 Pack ADDITIONAL FEATURES Product Gross Weight: 0.2500 lb Product Net Weight: 0.2500 lb Product Height: 1.00 in Product Length: 0.50 in Product Width: 0.50 in 1 Inches, 2 Pack ADDITIONAL FEATURES Product Gross Weight: 0.1000 lb Product Net Weight: 0.1000 lb Product Height: 3.20 in Product Length: 1.00 in Product Width: 5.00 in 1 Inches, 4 Pack ADDITIONAL FEATURES Product Gross Weight: 0.1000 lb Product Net Weight: 0.1000 lb Product Height: 3.20 in Product Length: 1.00 in Product Width: 5.00 in INSTRUCTIONS Use Instructions: Simply attach to air pump using airline tubing and place in your desired location within your aquarium. May be buried under gravel. SPECIFICATIONS Compatible With: Air Pump With LED: No