ADVANCED CONDENSATE Drainage: The condensate collector features a gradient U-shaped design that effectively facilitates drainage of various HVAC systems. It is designed to prevent suction from drawing water back into the air conditioner, ensuring a smooth, continuous flow of water for optimal functionality. Air quality protection: Traps feature automatic air-blocking water seals to ensure dirty air from HVAC drain lines does not re-enter the indoor environment. The water-filled U-shaped curve acts as a barrier, cutting off the inflow of polluted air and protecting the quality of the indoor air space. Transparent and Accessible Design: The trap is made of clear PVC, its visibility allows easy monitoring of sediment buildup. It features an openable blue lid for quick inspection and cleaning, maintaining the efficiency of the trap and extending its life. HIGH-EFFICIENCY CLEANING TOOL INCLUDED: Enhance HVAC system maintenance with the included flexible brush. This cleaning tool is specifically designed to pass through U-traps for a thorough cleaning, helping to prevent clogs and maintain system efficiency. Durable and easy to install: Made of high-quality materials, this trap is durable and has a long service life. It is designed to fit perfectly into 3/4-inch PVC drain pipe commonly found in central air conditioning, furnace condensate, and other HVAC systems. Installation is very simple, just remember to prime the clear parts and use PVC cement to prevent leaks. Colour:As Shown Material:pvc Package Contents: 3 x U-shaped pipe set 3 x Brush