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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-PR Series - Medium Sump Promenade Deck Drains
R1220-PR Series - Medium Sump Promenade Deck Drains

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MIFAB Series R1220-PR lacquered cast iron medium sump roof drain with anchor flange, large cast iron waterproofing membrane clamp ring with integral gravel stop, square adjustable collar with hinge pins and standard 12" (300) square hinged ductile iron grate with 3/8" (9) maximum width drainage slots, and a free area of 51 square inches (32903).
FUNCTION: Used in flat roofs and decks designed for promenade or recreational areas. Large square top blends in with tile and brick patterns and has enough free area for efficient drainage of rainwater. Narrow, 3/8" (9) drainage slots prevent debris from entering the drain line. Extra wide anchor flange and membrane clamp with tongue in groove design provides for secure grip of membrane and roof flashing materials. Specify MIFAB's double adjustable extension (Suffix -15) to enable one to adjust the extension independent of the top assembly to the required height and position. This unique design permits one to align the square drain with the square tile or brick pattern.

Item Name

R1220-PR Series - Medium Sump Promenade Deck Drains


R1220-PR Series - Medium Sump Promenade Deck Drains


53.00 lbs.

Deck Opening

Deck Opening with Sump Receiver

Dimensional Drawing
File Not Found
Adjustable Strainer Type

Medium Sump Promenade Deck Drains

Load Rating
Strainer Diameter
Grate Adjustment Min.

Free Area Rating
71.50 in2 (32903 mm2)
Grate Adjustment Max.

Strainer Size
Dome Type

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