Lennox CHA112753 — curb adapter & replacement fit
The Lennox CHA112753 mounts on a roof curb with an overall footprint of 134″ × 69.5″. SMARTCurb can compile a fabrication-ready curb adapter between this unit and hundreds of other rooftop units — replacement without touching the roof deck.
Curb footprint: 134″ × 69.5″ (L × W)
Covered models: CHA112753, CHP112753, GCS112753/3003
Existing-curb pattern drawing — reference only, verify dimensions before fabrication.
Replacing a Lennox unit? Read the Lennox curb compatibility guide →
Compatible replacement pairings
- Lennox CHA81853/2753 126.5″ × 76.5″
- Lennox CHA81853/2753 126.5″ × 77″
- Lennox CHA81353 124″ × 57″
- Lennox GCS111353 108″ × 69.5″
- Lennox CHA161853 112″ × 64″
- Lennox GCS1-651/653 108.5″ × 62.5″
- AbsolutAire AA5 132″ × 70″
- American Standard BGTC090/120A/B 131.5″ × 68″
Need this fabricated?
Taylor Metals builds SMARTCurb adapters in 16 ga galvanized steel, fully welded, ready to set. Vancouver / Pitt Meadows, BC.
Request a quote — most quotes within 24 hours