Trap - Plain, S-trap, 40mmx40mm, Flexible, BlackTrap Plain, S trap, 40mm x 40mm, Flexible, Black is a versatile plumbing fitting designed for effective drainage and odor prevention. Its flexible black construction allows easy connection and alignment with 40mm pipes, making it ideal for installations where rigid traps are difficult to fit. Commonly used under sinks or basins, this S trap maintains a water seal to stop drain odors from entering living spaces in residential or commercial plumbing