Tudomro 20pcs Aquarium 1 Way Thread Valves Air Flow Control Valves with 1 Aquarium Airline Tubing 6.5 Feet Standard 3/16" Air Hose for Fish Tank

Features: Flexible Tubing The soft silicone air tubing is easy to bend and shape for custom installation in your fish tank. Its flexibility prevents kinking, maintaining consistent airflow throughout the entire 6.5ft length for optimal aeration. Wide Application This aquarium air valve and tubing set is ideal for various aquatic environments, including freshwater, saltwater aquariums, shrimp tanks, and hydroponic systems. It's perfect for air pumps, CO2 injection systems, and general aeration needs. Specifications: Material: Metal (valve), Silicone (tubing) Color: Silver (valve), Clear (tubing) Size: Outlet Diameter: 0.2 inches (5mm) Overall Dimensions: 1.18" x 0.31" x 0.82" (30 x 8 x 21mm) Package includes: 20 x Aquarium One Way Check Valves 1 x 6.5ft Aquarium Air Tubing Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.

• Complete Bundle: you will receive 20 aquarium check valves and 1 aquarium air tubing (6.5ft long); This perfect combination provides sufficient quantity for daily use, replacement, and sharing with family and friends who love fish keeping
• One-way Design: featuring a one-way straight-through design, these aquarium check valves allow air to flow only in one direction; The multi-layer structure at the joints ensures a seal with the hose, effectively preventing slipping and ensuring leak-proof connections
• Precise Dimensions: the outlet diameter is 5mm/0.2 inches with overall dimensions of 30 x 8 x 21mm/1.18" x 0.31" x 0.82"; The aquarium air tubing is 6.5ft long with a 3/16" diameter (ID 4mm, OD 6mm), perfectly fitting most aquarium air pump setups
• Reliable Quality: crafted from durable, fish-safe metal, these check valves are rust-proof, anti-corrosive, and anti-damage for long-lasting use; The tubing is made of soft, flexible silicone that resists hardening and CO2 corrosion, ensuring safe and reliable performance
• Easy Adjustment: the air flow control lever offers precise regulation; When the lever is at a 90° angle to the channel, airflow is fully closed; Simply rotate the lever to open the channel from closed to fully open, giving you full control over the air volume in your aquarium