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Hart & Cooley Manuals
Commercial Registers & Grilles
20" x 8" (Wall Opening Size) White Commercial Supply Register (821 Series)
111
112
113
114
115
116
117
118
119
120
Screw
Hole
Location
Chart
92
Series,
94
Series,
98
Series
(Pages
37-41)
821,
831
(Page
36)
Engineering
Data
117
Engineering
Data
1
...
...
117
118
119
120
121
...
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128
