Check for for Air CO2 Line Tubing Regulator Non-Return in Aquarium System

Give your aquarium an elegant general appearance. Size: (As picture shows) Bubble Counter 23#: 13 2cm/5.12 0.79" Bubble Counter 24#: 12 1.7cm/4.72 0.67" Check for 22#:10 1cm/3.94 0.39". Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.

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