AC3850 Fernco Adaptor Coupling 360mm - 385mm / 300mm - 325mm

Fernco AC3850 adaptor coupling with a banded seal, designed for pipe with an outside diameter of 360mm to 385mm and 300mm to 325mm. Manufactured from EPDM rubber, incorporating a Grade 1 304 stainless steel band.

The Fernco AC3850 Adaptor Coupling is a high-performance solution designed for connecting extra-large drainage pipes of differing outside diameters in the most demanding environments. Ideal for major drainage infrastructure, industrial projects and large commercial installations, this adaptor coupling delivers maximum sealing confidence and durability.

EPDM Adaptor Coupling Data Sheet

Featuring a resilient EPDM rubber sleeve and robust stainless steel clamp bands, the AC3850 provides a secure airtight and watertight seal capable of withstanding ground movement, environmental exposure and long-term use. Its flexible body allows for easier alignment during installation and accommodates slight pipe offset without compromising joint integrity. Installation is simple using standard tools, helping reduce downtime on large-scale projects.

Key Features & Benefits:

• Designed for extra-large mixed-diameter pipe transitions
• High-strength EPDM rubber sleeve
• Corrosion-resistant stainless steel clamps
• Provides reliable airtight and watertight performance
• Accommodates pipe movement and slight misalignment
• Easy installation with standard tools
• Compatible with multiple pipe materials
• Ideal for industrial and infrastructure drainage applications

The AC3850 is the ideal choice for professionals requiring a robust, flexible adaptor coupling for the largest and most demanding drainage systems.