New! EXTRA Heavy-Duty 4 in. Wye Fitting. Built for durability and reliability, this fitting is the preferred choice of the French Drain Man Team. The 4 in. Wye fitting seamlessly connects multiple drainage lines, ensuring a smooth transition between pipes and effectively directing water flow while minimizing turbulence. Trust the choice of professionals — choose our EXTRA Heavy-Duty 4 in. Wye Fitting for your next drainage project.