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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Item Cat. No. Model Description
18 H1969 SF4.5HT-2 Horizontal Square Termination (without flex)
18 77L87 SFKIT12S Flex Square Term. (with 12 inch [305 mm] * compressed flex)
18 77L88 SFKIT18S Flex Square Term. (with 18 inch [457 mm] * compressed flex)
18 77L89 SFKIT24S Flex Square Term. (with 24 inch [610 mm] * compressed flex)
18 77L90 SFKIT36S Flex Square Term. (with 36 inch [914 mm] * compressed flex)
18 77L91 SFKIT48S Flex Square Term. (with 48 inch [1219 mm] * compressed flex)
19 56L74 SFVT30 Vertical Termination for flex (flat to 6/12) with flex adapter, section of rigid vent,
roof support collar assembly, roof flashing and storm collar.
19 56L75 SFVT45 Vertical Termination for flex (6/12 to 12/12) with flex adapter, section of rigid
vent, roof support collar assembly, roof flashing and storm collar.
*20 60L10 SF-18 18 ft. (5.49 m) * compressed flex
*20 98K03 SF-12 12 ft. (3.66 m) * compressed flex
22 10K81 SFMP Mill-Pac, Black, High Temperature Sealant
22 89L40 SFMP-12 Mill-Pac, Black, High Temperature Sealant - Bulk 12 pack
23 91L66 SF-GC4-6 Gear Clamp 4.5 in. (114 mm) for flex (6 pieces)
23 91L67 SF-GC7-6 Gear Clamp 7.5 in. (190.5 mm) for flex (6 pieces)
24 99L02 SV4.5HRK14 Horizontal Riser Kit, 14"
24 99L03 SV4.5HRK36 Horizontal Riser Kit, 36"
25
H1988 CTSA-33
Chase Top Shroud Kit, Arch Top 3 X 3
26
H1985 CTSO-33
Chase Top Shroud Kit, Open Top 3 X 3
26
H1987 CTSO-44
Chase Top Shroud Kit, Open Top 4 X 4
26
H1986 CTSO-46
Chase Top Shroud Kit, Open Top 4 X 6
8 H2248 SF4.5HF
Firestop / Spacer - Horizontal (flex) (3-1-1 spacing)
, 10 Pack
8 H2249 SF4.5VF
Firestop / Spacer - Vertical (1-1-1 spacing)
, 10 Pack
22
23
19
S
e
a
l
a
n
t
20
18
24
Open Top, Chase Top Shroud
Inches (millimeters)
Model A B C D *E
CTSO-33
37-5/8
(955)
37-5/8
(955)
7-1/2
(191)
24-1/2
(622)
3
(76)
CTSO-44
48-5/8
(1235)
48-5/8
(1235)
7-1/2
(191)
24-1/2
(622)
3
(76)
CTSO-46
48-5/8
(1235)
73 1/4
(1860)
7-1/2
(191)
24-1/2
(622)
3
(76)
E
C
E
1
2
typ.
typ.
1 typ.
2a
2a
2a
2a
2b
2b
2b
C
D
A
B
B
A
D
C
B
A
D
Ref. Form #750,193M
Ref. Form #750,194M
*
All compressed flex vents can be
expanded up to two times.
26
25
CTSO-46 Chase Top
Shroud for double
terminations
CTSO-33/44 Chase
Top Shrouds for Single
terminations
Arch Top, Chase Top Shroud
Inches (millimeters)
Model A B C D
CTSA-33
34"
(864)
5"
(127)
34"
(864)
34"
(864)
INSTALLATION ACCESSORIES