PM&I: Catalog of Cast Downspouts, Drains and Guards: R-4976-7 Series

PACIFIC MARINE & INDUSTRIAL

Engineering Department Email:

Downspouts, Drains and Guards
R-4976-7 Series

Type A and B Cast Iron Areaway Gratings

Light Duty

For use over window wells providing maximum light transmission.

Also suitable for use as ventilating and shaft gratings.

Not recommended for bicycle traffic.

Specify: Catalog Number and type A or type B design.

Dimensions in inches
Catalog
No.	A	B	Openings	Bars
Half Round
R-4976-1	12 x 24	1	1 1/4	1 / 4
R-4976-2	15 x 30	1	1 1/4	1 / 2
R-4976-3	20 x 40	1 1/4	1 1/4	5 / 16
R-4976-4	24 x 48	1 1/4	1 1/4	5 / 16
Rectangular
R-4977-1	12 x 24	1	1 1/4	1 / 4
R-4977-2	15 x 30	1	1 1/4	1 / 4
R-4977-3	20 x 40	1 1/4	1 1/4	5 / 16
R-4977-4	24 x 48	1 1/4	1 1/4	5 / 16
R-4977-5	30 x 60	1 1/4	1 1/4	5 / 16
Note: On Type A, grate size exceeds dimension “A” by 1 1/2” on all except wall
side. On Type B, grate is 1” wider and 2” longer than dimension “A”.

SINCE 1985