Function: A P-trap is a plumbing fixture designed to hold a small amount of water to create a liquid seal, which prevents sewer gases or unpleasant odors from entering a home or building through the drain system.
Application: While commonly associated with sinks, this specific 3/4-inch size is often used for air conditioning or HVAC condensate drain lines to allow water to drain while preventing air from being pulled into the system.
Material and Size: The trap is made of copper and has a 3/4-inch diameter.
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