Review on 🐠 Enhance Your Aquarium Aeration with JIH Air Pump Accessories Set - 25ft Black Standard Airline Tubing, Air Stones, Check Valves, Suction Cups, and Connectors by Amy Gregoire

Airline is soft and too flexible for even the smallest corners. Screw valves are even worse. They let air through when the valve is barely open. Unscrew them half a turn and they bubble. 2 out of 4 airstones didn't work. Almost everything leaks or shuts off the air because of that inferior hose. The only pluses are check valves, they seem to work, and suction cups. Good suction cups are hard to find, although the clamps are too wide to hold the air line. I placed root tips in the brackets, glued them to the bottom of the aquarium and covered them with substrate. If I hadn't used the suction cups I would have returned this order. 2/5 stars