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Serving all of the USA, Canada, Australia and the Middle East, MIFAB can provide you with the quality, engineered plumbing and drainage solutions you need. Innovative product designs save the installer time and material cost and provides the owner with higher quality cast stainless steel drains and cleanouts for the same cost as the industry standard nickel bronze. Contact us today to learn more.

All Categories  > Roof Drains  > R1220 Series - Medium Sump Roof Drains
R1220 Series - Medium Sump Roof Drains

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MIFAB Series R1220 lacquered cast iron medium sump roof drain with 12” diameter anchor flange, large cast iron waterproofing membrane clamp ring with integral gravel stop, and standard self-locking cast iron dome strainer with a free area of 71.50 square inches.
FUNCTION: Used in any type of flat roofs where a medium sized drain is required. Wide anchor flange and membrane clamp with deep groove design provides for secure grip of membrane and roof flashing materials.

Item Name

R1220 Series - Medium Sump Roof Drains


R1220 Series - Medium Sump Roof Drains


26.50 lbs.

Deck Opening

Deck Opening with Sump Receiver

Dimensional Drawing
File Not Found
Adjustable Strainer Type

Load Rating
Strainer Diameter
Grate Adjustment Min.

Free Area Rating
71.50 in2
Grate Adjustment Max.

Strainer Size
Dome Type

Cast Iron Dome@323.00

Standpipe Adjustment Min
Standpipe Adjustment Max
Strainer Adjustment Max
Strainer Adjustment Min
Body Size

Length (A)

No Hub Pipe Size
1321 West 119th Street Chicago, IL 60643
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Tel: 773.341.3030
Fax: 773.341.3047
E-mail: sales@mifab.com