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NOTE: As of 4/13/26, Omega National's prefix has changed from NP to RS. This part number has changed from NPRHVB400SS to RSRHVB400SS.
Broan 400 CFM stainless steel ventilator is a ventilation power module designed for wood range hoods where dependable cooktop exhaust is needed. The HVI certified 400 CFM performance on high with a 3-1/4 x 10 inch rectangular duct, and 390 CFM on high with a 6 inch round duct, provides strong airflow to pull smoke and steam out at the cooking surface, which helps keep surrounding cabinetry cleaner and reduces lingering odors in the kitchen area. The stainless steel finish creates a clean, professional look under a wood range hood, so the visible surface matches other stainless appliances in the space. The 21-3/8 inch Broan Select stainless steel range hood ventilator configuration works as a compact power module that fits into compatible wood hood designs, giving flexibility in custom kitchen layouts.
This Broan ventilation power module is set up for vertical ducting using either a 6 inch round duct or a 3-1/4 x 10 inch duct, so cabinet and hood planning can follow two familiar duct formats for routing through upper cabinets or into ceiling chases. The power requirements of 120 VAC, 60 Hz at 2.3 amps keep electrical load modest, which simplifies electrical circuit planning in many kitchen layouts. The master on-off switch and 3-speed rotary switch are integrated into the unit, so the control points are already located on the ventilator, allowing straightforward user access from the hood front or underside. The stainless steel finish on the unit provides a durable, easy-to-wipe surface around the intake and lights, which helps maintain a clean appearance under the hood opening.
This Omega National Products RHVB400SS ventilator functions as a Broan Select stainless steel range hood power module for wood range hoods in kitchen and bath cabinet projects. The ventilator category of ventilation power modules positions it for use inside custom wood range hoods rather than as a stand-alone wall hood, which suits cabinet builders creating integrated wood mantel or chimney designs. The HVI certified CFM levels of 400 with a 3-1/4 x 10 inch rectangular duct and 390 with a 6 inch round duct mean it is intended for ducted installations where air is exhausted vertically, supporting layouts that route ductwork through upper cabinets or directly upward into framing chases. The vertical 6 inch round or 3-1/4 x 10 inch ducting options are particularly useful in remodels that must tie into existing duct runs sized to these common standards, helping reduce rework when replacing an older insert.
The 3-speed rotary switch gives clear, tactile speed selection, so occupants can match fan speed to actual cooking load, which helps maintain comfort and noise balance during everyday use. The Heat Sentry that automatically turns the unit on when excessive heat is detected adds a layer of protection for wood hood construction and adjacent cabinets by responding when high-heat cooking drives temperatures up at the intake. The master on-off switch designed to meet future standards provides an extra level of control, allowing the entire ventilator system to be shut down from one point, which assists in service work or adjustments. The quick-release aluminum mesh filter that is dishwasher safe allows repeated removal and cleaning without special tools, supporting ongoing airflow performance in kitchens that see frequent frying or searing. The bright LED lights, using two 2.8 watt modules with greater than 250 lumens output at a 3,000K color temperature and a rated life greater than 25,000 hours, offer stable, warm task lighting over the cooktop while minimizing relamping needs, which benefits both homeowners and service professionals over long-term use.
The RHVB400SS ventilator delivers an HVI certified 400 CFM on high with a 3-1/4 x 10 inch rectangular duct, and 390 CFM on high with a 6 inch round duct, supporting strong cooktop exhaust.
The ventilator is designed for vertical ducting using either a 6 inch round duct or a 3-1/4 x 10 inch duct, which fits many standard vent runs through cabinets or ceilings.
The ventilator uses a 3-speed rotary switch, so users can select among three fan speeds to match light simmering or heavier cooking loads.
The Heat Sentry automatically turns the ventilator on when it detects excessive heat, helping move hot air away from the cooktop area under demanding cooking conditions.
The ventilator uses a quick-release aluminum mesh filter that is dishwasher safe, allowing straightforward removal and cleaning to manage grease buildup.
The ventilator has bright LED lights using two 2.8 watt modules that produce greater than 250 lumens at 3,000K color temperature, giving warm, efficient cooktop illumination.
The Omega National Products 21-3/8 inch Broan Select stainless steel range hood ventilator with 400 CFM HVI certified performance brings a compact, Energy Star rated power module to wood range hood projects that require vertical ducting. The choice of 6 inch round or 3-1/4 x 10 inch ducting, together with the 3-speed rotary switch and Heat Sentry automatic activation, supports both new installations and replacements where dependable exhaust is critical. Add the dishwasher-safe quick-release aluminum mesh filter and long-life LED lighting, and this RHVB400SS ventilation power module provides a practical, job-focused solution for custom hood builds and kitchen updates.
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