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3/4" MNPT X 3/4" FEMALE PIPE 
(INCLUDED)

P-TRAP
(INCLUDED)

3/4" MNPT X 3/4" FEMALE PIPE 
(INCLUDED)

P-TRAP
(INCLUDED)

3/4" PIPE X 3/4" PIPE COUPLING
(NOT INCLUDED)

PVC HARD PIPE
(NOT INCLUDED)

3/4" PIPE TEE

(INCLUDED)

3/4" FEMALE PIPE X 3/4" FNPT
(INCLUDED)

3/4" MNPT X 3/4" BARB (INCLUDED)

3/4" FLEXIBLE TUBE
(NOT INCLUDED)

HIGHER

THAN

FILTER

FRAME

OPTIONAL

VACUUM

BREAK

4X DOUBLE NUT BOTTOM 

WITH FLAT WASHER, 

SINGLE NUT ON TOP

3. NUT & WASHER

4. LEVEL

90-2557

5. DRAIN CONNECTIONS

90-2534

IMPORTANT NOTES:

•  Do not double trap.

•  Prime drain trap when installation is complete.

•  Drain line must maintain a constant downward slope.

•  Support the drain lines to prevent dips or sags.

•  Do not submerge the end of the drain line in water to 

avoid microbial growth.

•  Vacuum break is recommended when using a condensate 

pump or when connecting multiple drain lines.

90-2531

2

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