Marathon 4" Copper-Tite w/Clamping Ring & Tape Seal

The Marathon BCTS49CR is a 4-inch Copper-Tite retrofit roof drain with a copper body, factory-applied tape seal, and clamping ring for watertight performance. It is designed for reroof and retrofit applications and includes a 10-inch ABS clamping ring and 10-inch polyethylene strainer. Available with a 14-inch small flange or an 18-inch large flange, the BCTS49CR features a 9-inch outlet length to fit securely into existing piping.

Key Features:

• 4-inch retrofit drain with anti-backup tape seal
• Copper body for strength and corrosion resistance
• Flange options: 14-inch small flange or 18-inch large flange
• 9-inch outlet length for retrofit applications
• Includes 10-inch ABS clamping ring and 10-inch polyethylene strainer

• Model / Part Number: BCTS49CR
• Outlet size: 4″
• Fits existing drain pipe size: 3-7/8″ – 4-1/4″
• Outlet length: 9″
• Flange size: 14″ (small flange) or 18″ (large flange)
• Body material: Copper
• Clamping Ring: 10″ ABS
• Strainer: 10″ polyethylene
• Packaging: 1 per carton

• Clean the existing drain sleeve and roof membrane.
• Test fit the BCTS49CR in the sleeve before removing the restraint on the tape seal.
• Remove the restraint and insert the drain so the tape expands into the sleeve gap.
• Seat the flange flat against the roof surface.
• Secure the 10-inch ABS clamping ring.
• Install the 10-inch polyethylene strainer.
• Flash the flange according to roofing system requirements.

Q: What is the outlet size of the BCTS49CR?
A: The outlet size is 4 inches.

Q: What pipe sizes does this drain fit?
A: It fits existing pipe sizes between 3-7/8″ and 4-1/4″ inside diameter.

Q: What flange sizes are available?
A: The BCTS49CR is available with a 14-inch small flange or an 18-inch large flange.

Q: What is the outlet length of this model?
A: The outlet length is 9 inches.

Q: What components are included with this drain?
A: Copper body, tape seal, ABS clamping ring, and polyethylene strainer.