4" x 4" Conc-Conc Coupling

Fernco Couplings connect pipes of same or different sizes and materials, quickly and easily. Couplings are made of tough, flexible PVC, are resilient and unaffected by soil conditions, resistant to chemicals, ultraviolet rays, fungus growth, and ensure a leak-proof seal.

• Supported connections include concrete connecting to concrete.
• Easily installed with a slotted screwdriver or a ⁵/₁₆" nut driver or socket. Once installed, tighten stainless steel bands (included) to 60 inch-lbs. torque.
• Couplings have an approximate 5% stretch to accommodate slight variations in pipe outside diameter.