R6 Insulated Plenum Box - 3-Slot - Fiberglass HVAC Plenum | Cryptic Air Size:18x6 Compatible with Cryptic Air 1-slot

Compatible with Cryptic Air 1-slot modern AC vent covers

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reduced condensation

quiet airflow with a minimalist look

R6 Insulated Plenum Box - 3-Slot - Fiberglass HVAC Plenum | Cryptic Air Size:18x6 Compatible with Cryptic Air 1-slotR6 Insulated Plenum Box for 3 Slot (Triple Slot) Linear Diffusers Cryptic Air plenum boxes are built to pair seamlessly with our 3 slot linear slot diffusers, delivering optimal airflow performance, quiet operation, and a precise fit while leaving you full flexibility on the job site. Constructed from R6 fiberglass duct board for excellent insulation, reduced condensation, lower noise, and improved system efficiency. Why it works: Matched to your