DOWNFLOW FILTER SIZES
FURNACE
INPUT
WIDTH
BTUH (K)
SIZE
QTY.
14
(
50
14
(
x 20
(
1
17
1
⁄
2
(
75 & 100
12
(
x 20
(
2
21
(
100
12
(
x 20
(
2
24
1
⁄
2
(
125 & 150
14
(
x 20
(
2
UPFLOW FILTER SIZES
FURNACE
INPUT
SIZE
WIDTH
BTUH (K’s)
BOTTOM
SIDE
QTY.
14
(
50
12
1
⁄
4
(
x 25
(
15
3
⁄
4
(
x 25
(
1
17
1
⁄
2
(
75 & 100
15
3
⁄
4
(
x 25
(
15
3
⁄
4
(
x 25
(
1
21
(
100
19
1
⁄
4
(
x 25
(
15
3
⁄
4
(
x 25
(
1
24
1
⁄
2
(
125 & 150
22
3
⁄
4
(
x 25
(
15
3
⁄
4
(
x 25
(
1
4
Figure 5. Downflow Filters Installation
Figure 4. Upflow Side Filter Installation
Figure 3. Upflow Filter Location
Summary of Contents for RGPK Series
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