Marathon BS-1300 Aluminum Retrofit Ring & Dome

The Marathon BS-1300 Aluminum Retrofit Ring & Dome is engineered as a durable and lightweight replacement component for retrofit roof drains. Its corrosion-resistant aluminum construction ensures long-lasting performance, while the dome design helps prevent debris from clogging drains. The dome measures 12-1/8″ in diameter with an overall height of 4-1/2″, making it a reliable solution for maintaining efficient roof drainage.

Key Features:

• Aluminum retrofit dome with ring assembly
• Dome dimensions: 12-1/8″ diameter × 4-1/2″ height
• Lightweight and corrosion resistant
• Designed for retrofit roof drain applications
• Provides long service life and consistent performance

• Model / Part Number: BS-1300
• Product Type: Aluminum Retrofit Ring & Dome
• Dome Outside Diameter: 12-1/8″
• Dome Height: 4-1/2″
• Material: Aluminum
• Application: Retrofit roof drains

• Remove the old dome and ring from the existing roof drain.
• Clean the drain bowl to remove dirt and debris.
• Position the retrofit ring in alignment with the drain.
• Install the BS-1300 dome onto the retrofit ring.
• Ensure proper seating and secure with supplied fasteners if applicable.
• Test drainage by running water to confirm unobstructed flow.

Q: What are the dimensions of the BS-1300 dome?
A: The dome has a 12-1/8″ diameter and 4-1/2″ overall height.

Q: What material is the BS-1300 made from?
A: It is constructed from lightweight, corrosion-resistant aluminum.

Q: What type of drains is the BS-1300 used with?
A: It is designed for retrofit roof drain applications.

Q: Does this include both the ring and dome?
A: Yes, the BS-1300 includes both the retrofit ring and the aluminum dome.

Q: Is it easy to install?
A: Yes, it is designed for straightforward installation with basic tools.