BE-TOOL 2 Pack Air Stone Bubble Ring Disc, 13cm/5.11in Adjustable Aquarium Air Stone Round Durable Airstones Fish Tank Bubbler for 4mm/8mm Hose for Aquariums Pond

• High-Temperature Sintering Process: Aquarium air stones are made from high-quality materials through high-temperature sintering, resulting in uniform pores, long-lasting permeability, durability, and efficient operation. They will not harm the health of aquatic life
• Repeatedly Cleanable: The aquarium air stone is made of durable, anti-aging material and can be repeatedly cleaned and used. For best results, please soak it completely in clean water for at least 15 minutes before first use
• Quiet Operation: The aquarium air stone operates extremely quietly, producing a gentle stream of bubbles. It replenishes oxygen to the water without disrupting its stillness, making it ideal for home aquariums or professional displays
• Highly Efficient Oxygenating: The surface of the aquarium air stone has high-density, uniform micropores that convert oxygen into a large number of fine, mist-like bubbles. This significantly increases the residence time and contact area of ​​the bubbles in the water, promoting water circulation
• Wide Applications: Aquarium air stones are compatible with 4mm/8mm hoses and are widely used in hydroponic systems, small professional aquariums, and fish shops, meeting the needs of various aquarium setups

Product description Feature: 【Fine & Dense Bubble】Produces ultra-fine, uniform bubbles that disperse evenly throughout your aquarium water, maximizing oxygen dissolution to support healthy fish, plants, and beneficial bacteria. The gentle bubble flow won't disturb substrate or stress aquatic life, making it ideal for both freshwater and saltwater tank. 【Durable & Strong】Constructed from high-quality, non-toxic fine sand material, it is resistant to clogging and corrosion, ensuring years of reliable performance. The porous structure provides consistent bubble output even with regular use without degradation, eliminating the need for frequent replacements, saving you time and money. 【Quiet Operation 】Designed with a smooth, air-permeable surface that minimizes noise during use. This bubbler operates quietly, letting you enjoy the calming sight of bubbles without distracting sounds. Perfect for bedrooms, offices, or living spaces where peace is key. 【Easy Installation】Comes ready to use with 4mm or 8mm air tube. No complicated tools required—simply connect the air stone to your pump, place it in your tank, and power on for instant bubble action. Suitable for vertical or horizontal placement, adapting to your tank's layout. 【Enhances Water Circulation】Adds a visually appealing, dynamic element to your aquarium with a steady stream of shimmering bubbles, creating a lively underwater landscape. The bubble flow also promotes gentle water circulation, preventing dead zones and helping distribute nutrients evenly—keeping your tank clean, clear, and visually stunning. Specification: Name: Air Stones Disc Material: Fine Sand Package Included: 1Pcs * Air Stones Disc Directions No