The UEL M15E Solvent Weld 90° Waste Pipe Bend is a commercial-grade plumbing fitting engineered to create tight, fixed 90-degree directional changes in domestic and commercial wastewater systems. Featuring a standard 40mm (1.5 inch) outer diameter with dual female sockets, this knuckle bend is injection-molded from a high-impact ABS/PVC polymer blend built to handle continuous hot-water discharges and harsh household chemicals. Formulated specifically for solvent welding, it establishes a permanent, leak-proof molecular fusion when treated with standard solvent cement. Its smooth internal profile maximizes fluid dynamics, drastically reducing flow resistance to prevent grease, hair, and structural debris from accumulating in hidden behind-wall or under-sink installation lines.