Glass Ushaped tube CO2 refining kit for planted aquariums Key benefits Improves CO2 conversion rates to increase dissolution efficiency in the water grass tank. Produces finer, more consistent CO2 bubbles for more even distribution and reduced gas loss. Modular glass and pipe design fits with standard aquarium CO2 setups, allowing simple integration and upgrades. What it does The glass Ushaped tube works with the CO2 refining device to break down CO2 into finer bubbles and prolong contact time with water. Ushaped connecting pipe and elbow pipe provide a compact path for gas flow, minimizing turbulence and keeping bubble delivery steady. Gas pipe routes CO2 from the source into the refining unit and then into the water grass tank for efficient uptake by plants. Features and attributes Material: glass Ushaped tube for visible flow and chemical resistance, plus durable plastic pipes for connections. Function: refines and disperses CO2, reduces bubble size, and increases dissolution before gas reaches the aquarium. Compatibility: designed to work with common CO2 systems and standard aquarium tubing; suitable for use in planted tanks, sumps, and external reactors. Performance: optimized flow path and refined bubble output support more efficient CO2 use and more stable tank conditions. Practical details Compact Ushaped form factor fits near tank walls or inside sumps without obstructing layout. Visible glass section allows monitoring of bubble behavior and device operation. Simple connections using the included Ushaped connecting pipe, elbow pipe, and gas pipe make installation straightforward. Use scenarios Planted aquarium setup: install the glass Ushaped tube and CO2 refining device inline between the CO2 regulator and the tank to reduce bubble size and improve plant uptake. Sump integration: place the unit in a sump chamber so refined CO2 dissolves under longer contact time before returning to the water grass tank. Retrofit for existing systems: a basic diffuser with this assembly to upgrade conversion rates without changing the CO2 source. Why choose this configuration Clear function and visible glass section for easy monitoring. Modular pipes and fittings for flexible placement and straightforward installation. Practical solution for hobbyists who need better CO2 dissolution and more consistent delivery in planted aquariums.