Lennox CHA81353 — curb adapter & replacement fit
The Lennox CHA81353 mounts on a roof curb with an overall footprint of 124″ × 57″. 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: 124″ × 57″ (L × W)
Covered models: CHA81353(C), GCS31353
Existing-curb pattern drawing — reference only, verify dimensions before fabrication.
Replacing a Lennox unit? Read the Lennox curb compatibility guide →
Compatible replacement pairings
- Lennox CHA81353 106″ × 57″
- Lennox CHA111853 108″ × 59.5″
- Lennox GCS111853 108″ × 59.5″
- Lennox CHA161853 112″ × 64″
- Lennox GCS1-651/653 108.5″ × 62.5″
- Lennox CHA81853/2753 126.5″ × 76.5″
- Valent VPR310 124.75″ × 61.5″
- Captive Aire CAS-HVAC2-18Z 121.25″ × 50.5″
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