Rheem/Ruud GPF21T300 — curb adapter & replacement fit
The Rheem/Ruud GPF21T300 mounts on a roof curb with an overall footprint of 113.5″ × 79″. 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: 113.5″ × 79″ (L × W)
Covered models: GPF21T300, RRCF***150/201, RREF***150/201, RRGF***150/201, RRCF***125, RREF***125, RRGF***125
Existing-curb pattern drawing — reference only, verify dimensions before fabrication.
Replacing a Rheem/Ruud unit? Read the Rheem/Ruud curb compatibility guide →
Compatible replacement pairings
- Rheem/Ruud RACH... 120″ × 80.5″
- Rheem/Ruud RACG2T... 123.5625″ × 81.75″
- Rheem/Ruud RSDA075/100 102″ × 81″
- Rheem/Ruud RRCE***075/100 91.5″ × 83″
- Rheem/Ruud RRCE***150/200 147″ × 79.5″
- Rheem/Ruud RPDC075/101 79″ × 79″
- Arcoaire NSPR20C 113.5″ × 79″
- Bryant 551A210 114.4375″ × 78.625″
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