About this item: Effectively Drains Condensate: the standard condensate trap adopts a gradient design to effectively drains condensate in a of HVAC systems; The U shape pipe filled with water is enough to stop the suction from pulling water back into the air conditioner, stopping the backflow of condensed water, so that the water can be drained smoothly Prevent Dirty Air from Back in: the trap provides an automatic air blocking water sealing device for an air conditioning drainage pipe; The full water in the U curve stops the dirty air inflow and pollute the indoor air Transparent Trap Design: the clear PVC U shaped pipe and openable blue caps makes you easily inspect if sediment builds to block the trap and easily open it for cleaning Flexible Cleaning Brush: comes with a 16 inch flexible brush, you can push a brush into the trap easily for cleaning Quality Material: the condensate trap is made of quality PVC, which is durable; Besides, it is very easy to install and can work well on your 3/4 inch PVC drain line for your central air conditioning, furnace condensate, and HVAC systems; Note: please remember to prime and PVC cement the clear parts so it doesn't leak Color: Blue & White Material: PVC Package Contents: 2 x 3/4 Inch Standard Condensate Trap set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.