The Fernco Flexible Coupling (1051 Series) is a dependable solution for connecting dissimilar pipe materials while maintaining a tight, leak-resistant seal. Designed for a 4 inch fitting, this coupling connects Asbestos/Ductile Iron to Cast Iron/Plastic, making it a versatile choice for repair work, replacements, and retrofit plumbing applications.

Fernco couplings are known for consistent performance and dimensional flexibility, helping create leak-proof seals on a wide range of pipe materials. Each coupling is clearly marked with the part number, size, and compatible pipe types for easy identification on the job. The 1051-44 meets ASTM D5926 and C1173 material standards and is rated for 60 in-lb torque and 4.3 psi pressure. Built for tough conditions, it operates in temperatures from -30 Deg F to 140 Deg F and measures 4.4 inch ID x 4.8 inch OD x 4 inch L with durable PVC construction.

• Tested designs backed by over five decades of proven performance
• Positive seal against infiltration and exfiltration
• Leak-proof and is resistant to chemicals, ultraviolet rays, fungus growth and normal sewer gases
• Connects same or different pipe sizes and materials quickly and easily
• Stainless steel clamps are corrosion-resistant and rust-proof