72R3100 diffuser provides adjustable airflow control for heavy-duty truck cabs, HVAC systems, and equipment enclosures. Featuring a 3.5-inch diffuser outlet and a 3-7/16″ mounting hole, this diffuser installs cleanly and delivers consistent air distribution where operator comfort and airflow control are required.
The diffuser offers 100% shut-off capability, allowing airflow to be fully closed when needed. Its durable construction supports long service life in demanding commercial environments. A retaining ring (RD-5-4611-0P) is required for installation and is sold separately.
Manufactured to OEM-grade standards and sourced from trusted industry suppliers, this diffuser delivers dependable performance across a wide range of truck and equipment applications.
Product Specifications
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Product Type: Diffuser
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Reference Part Number: 72R3100
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Manufacturer Catalog No.: RD-5-5223-1P
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Outlet Size: 3.5″
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Outside Diameter: 3-5/8″
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Mounting Hole Size: 3-7/16″
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Shut-Off Capability: 100%
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Retaining Ring: Required (RD-5-4611-0P, sold separately)
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Application: Cab ventilation, HVAC airflow control, equipment ventilation
Cross-Reference Numbers
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Texas Truck A/C: 700-6045
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AirSource / MEI: 1720
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Alliance: ABP N83 317021
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Climatech / TRP: GB1185, GB11850
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CoolStar / MEI: 760-1009
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Omega: 28-31528, 28-31538, 28-R3100
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Primatech: PTAC1720
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Truck Air / MEI: 18-2641
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TruckAC+: T3698
Interchange Numbers
1472793, 1720, 18-2641, 232-8635, 3299020, 360782, 4379-RD552231, 4379-RD552231P, 700-6045, 72R3100, 760-1009, 842600300, ABP N83 317005, ABP N83 317021, GB11850, LOU1009, PB1047, RDHRD552231P, RDT72R3100, V1110168

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