The Amerimax 55020 FLEX-Drain Coupler is a rugged, high-performance connector designed to simplify and strengthen your drainage system. Whether you're extending a line, making a repair, or adapting to fittings like wyes and tees, this 4-inch female-to-female coupler delivers the flexibility, durability, and reliability you need for both residential and commercial applications.

Key Features:

• Female-to-Female Coupling:
  Specifically engineered to join two cut pieces of FLEX-Drain pipe, this coupler also adapts easily to wyes, tees, end caps, and pop-up emitters—making it a versatile addition to any drainage setup .

• Universal Compatibility:
  Works with most 3" and 4" corrugated pipes and 4" PVC pipe, offering a secure, soil-tight fit that stays locked in place during backfilling and heavy use .

• Durable Polypropylene Construction:
  Made from high-strength, UV-resistant polypropylene, this coupler resists cracking, corrosion, and environmental wear. It exceeds all applicable ASTM standards and is rated for underground and soil drain use.

• Reliable Performance in Harsh Conditions:
  With a maximum working pressure of 70 psi and a temperature range from -50°F to 150°F, this coupler is built to perform in extreme weather and demanding environments.

• Quick, Tool-Free Installation:
  The push-fit design allows for fast, hassle-free installation—no glue, clamps, or special tools required. Just press the ends into place for a tight, leak-resistant seal.

Specifications:

• Model: 55020
• Material: Polypropylene (PP)
• Color: Black
• Connection Type: Female-to-Female
• Nominal Size: 4 inches
• Length: 3 inches
• Weight: Approx. 0.05 lbs
• Temperature Range: -50°F to 150°F
• Pressure Rating: 70 psi
• Country of Origin: USA

Applications:

• Joining two cut sections of FLEX-Drain pipe
• Adapting FLEX-Drain to wyes, tees, end caps, and emitters
• Repairing or extending underground drainage systems
• Landscape and yard drainage
• Stormwater runoff management