eliable and simple, the Merrill 2" Poly Barb Coupler is designed to securely join two sections of 2‑inch polyethylene (poly) pipe or hose — perfect for irrigation, water supply, lawn sprinkler, or other fluid‑transfer systems. Built for durability and long-term performance, this coupler offers an affordable, no-fuss solution for connecting flexible pipe in residential, agricultural, or commercial applications.