4" Insert Drain Coupler

4" Insert Drain Coupler Armtec XFC0413 4 in. Big 'O' Weeping Tile Insert Coupler allows convenient connection of multiple sections of Big 'O' 4 in. drainage tubing in your home drainage system. Its durable one piece moulded polyethylene constructions protects against leakage at the joint. This coupler is inserted on the inside of the pipe for a streamlined exterior. Features Quick and easy to install Highly chemical and corrosion resistant providing a long service life Unaffected by freeze-thaw cycles