Brochure

T-Bar Return-Air Filter Grilles
52
Engineering Data on Page 126
659T
Steel
Lanced Filter Grille
• Steel construction
• Lanced-face design with
1
/3” blade spacing
• Flush, removable face with concealed latches and
hinges can be installed in any direction
• Uses standard 1” disposable filters (not furnished)
• Bright White finish
659TI With Insulated Back
Includes these features
• Molded fiberglass back R4.2, R6 (see information
on page 54)
• Accepts 6” to 14” unique tab collar (6400 series) or
6” to 16” unique snap-in collar (5400 and 5400PP
series); also accepts standard spin-in collar
• Frame includes four seismic safety connections
659T / 659TI Available Sizes
20” x 20” with extended frame (overall 23
3
/4” x 23
3
/4”)
for 24” x 24” openings
44” x 20” with extended frame (overall 47
3
/4” x 23
3
/4”)
for 48”x24” opening (659T only)
See page 54 for fiberglass
specifications.
673T
Steel
Filter Grille
• Steel construction
• Lanced-face design with
1
/2”
blade spacing
• Flush, removable face with
concealed latches and hinges can
be installed in any direction
• Uses standard 1” disposable
filters (not furnished)
• Bright White finish
673TI With Insulated
Back
Includes these features
• Molded fiberglass back R4.2, R6
(see information on page 54)
• Accepts 6” to 14” unique tab collar
(6400 series) or 6” to 16” unique
snap-in collar (5400 and 5400PP
series); also accepts standard
spin-in collar
• Frame includes four seismic safety
connections
673T/673TI Available Size
20” x 20”, overall 23
3
/4” x 23
3
/4”
T-Bar Return-Air Filter Grilles