Description
The SWR U Trap – 4″ (110mm) is an essential PVC drainage trap fitting used to create a permanent water seal in floor-connected waste and drainage systems. It is widely used in apartments, villas, hotels, hospitals, commercial buildings, factories, and utility drainage networks across Bangalore, where odor control and hygienic wastewater disposal are critical.
This fitting is commonly searched as U trap plumbing, U trap PVC, and U trap drain, making it easy for plumbers, builders, and drainage suppliers in Bangalore to identify it for floor drain and underground waste line installations.
The main function of the SWR U Trap is to hold a small volume of water inside its curved section, creating a barrier that prevents foul sewer gases, cockroaches, insects, and drainage odors from entering bathrooms, wash areas, utility spaces, and service rooms. This makes it a critical hygiene fitting in modern drainage systems.
A common customer query is the difference between P trap and U trap. The key difference is that P traps are mainly used for wall outlet drainage systems like wash basins and sinks, while the U trap is best suited for floor-connected outlets and vertical waste connections. This makes the 4″ (110mm) U trap highly suitable for bathroom floor drains, nahani traps, underground wash areas, and utility discharge points in Bangalore.
Manufactured from premium-grade PVC/uPVC SWR material, this trap offers excellent resistance to wastewater chemicals, moisture, corrosion, scaling, and long-term wet conditions. Its 110mm size supports smooth drainage of high wastewater volumes in large residential and commercial installations.
For GST billing and stock classification, the HSN code for SWR U traps is commonly 39174000, which covers plastic pipe fittings.
Customers searching for U trap drain solutions in Bangalore choose the SWR U Trap – 4″ (110mm) because it offers strong odor blocking, smooth wastewater flow, durable construction, and long service life. Whether for apartment bathrooms, commercial utility areas, industrial drainage, or wholesale SWR supply, it remains a trusted professional-grade floor drainage solution in Bangalore.





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