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The Allied Commercial 21J19 is a QCA/QGA Series 14 inch high roof curb with a clip type design. This curb is designed for commercial HVAC applications.
This roof curb is ideal for commercial HVAC setups, ensuring secure and efficient high roof installations.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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