Mueller 12x21 DIY KIT FOR SLAB - Manual (Page 17)

BACK SIDE VIEW
R
DETAIL R
START SHEET 3/4" PAST THE END OF
THE FRAME AND 1" FROM THE
BOTTOM OF BASE
Q
DETAIL Q
10" 12" 12" 2"
36"
UPN-PANEL
BUTYLTAPE LAP SCREW
TEK SCREW
3
4
"
Foam Closure