S&P RCXII Rooftop Gravity Relief Vents

S&P RCXII rooftop gravity relief and intake ventilators are used to exhaust (relief) or supply (intake) air from or to an enclosed area without the need for a power operated fan. They rely on a difference in static pressure inside and outside the area to create an air flow through the ventilator from the area of higher pressure to the area of lower pressure. If the enclosed area is under a negative pressure, air will flow into the enclosed area (intake). If the enclosed area has a positive pressure, air will flow from it to the outside (relief).

These units can also operate as gravity ventilators, allowing air to flow from an enclosed area using the Stack Effect. The amount of air flow will depend on the temperature difference inside and outside the area and the height difference between the ventilator and the outside air intake to the area.

model description usually ships price QTY
RCXII06S S&P RCXII06 gravity relief/intake ventilators. Non powered. 2-3 Days $137.90
RCXII06SFS S&P RCXII06 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $136.40
RCXII08S S&P RCXII08 gravity relief/intake ventilators. Non powered. 2-3 Days $147.30
RCXII08SFS S&P RCXII08 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $145.70
RCXII10S S&P RCXII10 gravity relief/intake ventilators. Non powered. 2-3 Days $183.90
RCXII10SFS S&P RCXII10 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $181.60
RCXII12S S&P RCXII12 gravity relief/intake ventilators. Non powered. 2-3 Days $201.00
RCXII12SFS S&P RCXII12 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $197.10
RCXII14S S&P RCXII14 gravity relief/intake ventilators. Non powered. 2-3 Days $265.70
RCXII14SFS S&P RCXII14 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $264.90
RCXII16S S&P RCXII16 gravity relief/intake ventilators. Non powered. 2-3 Days $267.30
RCXII16SFS S&P RCXII16 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $265.70
RCXII18S S&P RCXII18 gravity relief/intake ventilators. Non powered. 2-3 Days $334.30
RCXII18SFS S&P RCXII18 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $333.50
RCXII20S S&P RCXII20 gravity relief/intake ventilators. Non powered. 2-3 Days $377.10
RCXII20SFS S&P RCXII20 gravity relief/intake ventilators. Non powered. Self flashing. 2-3 Days $375.60
RCXII24S S&P RCXII24 gravity relief/intake ventilators. Non powered. 7-8 Weeks $766.80
RCXII26S S&P RCXII26 gravity relief/intake ventilators. Non powered. 7-8 Weeks $836.90
RCXII30S S&P RCXII30 gravity relief/intake ventilators. Non powered. 7-8 Weeks $896.90
RCXII33S S&P RCXII33 gravity relief/intake ventilators. Non powered. 7-8 Weeks $1262.30
RCXII36S S&P RCXII36 gravity relief/intake ventilators. Non powered. 7-8 Weeks $1335.60
611214 S&P 12 inch high roof mounting curb. 14-3/4 inch sq. Galvanized with wood nailer. 2-3 Days $266.50
611222 S&P 12 inch high roof mounting curb. 22-1/4 inch sq. Galvanized with wood nailer. 2-3 Days $299.20
611227 S&P 12 inch high roof mounting curb. 27-3/4 inch sq. Galvanized with wood nailer. 2-3 Days $426.20
611233 S&P 12 inch high roof mounting curb. 33-3/4 inch sq. Galvanized with wood nailer. 2-3 Days $511.90
611240 S&P 12 inch high roof mounting curb. 40-3/4 inch sq. Galvanized with wood nailer. 2-3 Days $591.40
2401.0808U S&P exhaust/relief damper. Gravity. 8X8 inch. 2-3 Days $140.30
2401.1515U S&P exhaust/relief damper. Gravity. 15X15 inch. 2-3 Days $183.10
2401.2121U S&P exhaust/relief damper. Gravity. 21X21 inch. 2-3 Days $229.90
2401.2727U S&P exhaust/relief damper. Gravity. 27X27 inch. 2-3 Days $264.90
2401.3434U S&P exhaust/relief damper. Gravity. 34X34 inch. 3-4 Days $314.00
2401.M1515U S&P exhaust/relief damper. Motorized (115/1/60). 15X15 inch. 2-3 Days $381.00
2401.M0808U S&P exhaust/relief damper. Motorized (115/1/60). 8X8 inch. 2-3 Days $314.00
2401.M2121U S&P exhaust/relief damper. Motorized (115/1/60). 21X21 inch. 2-3 Days $409.10
2401.M2727U S&P exhaust/relief damper. Motorized (115/1/60). 27X27 inch. 2-3 Days $439.50
2401.M3434U S&P exhaust/relief damper. Motorized (115/1/60). 34X34 inch. 3-4 Days $508.80
2401.0808D S&P supply/intake damper. Gravity. 8X8 inch. 3-4 Days $140.30
2401.1515D S&P supply/intake damper. Gravity. 15X15 inch. 2-3 Days $183.10
2401.2121D S&P supply/intake damper. Gravity. 21X21 inch. 2-3 Days $229.90
2401.2727D S&P supply/intake damper. Gravity. 27X27 inch. 2-3 Days $264.90
2401.3434D S&P supply/intake damper. Gravity. 34X34 inch. 3-4 Days $314.00
2401.M0808D S&P supply/intake damper. Motorized (115/1/60). 8X8 inch. 2-3 Days $331.20
2401.M1515D S&P supply/intake damper. Motorized (115/1/60). 15X15 inch. 2-3 Days $376.40
2401.M2121D S&P supply/intake damper. Motorized (115/1/60). 21X21 inch. 2-3 Days $438.70
2401.M2727D S&P supply/intake damper. Motorized (115/1/60). 27X27 inch. 2-3 Days $465.20
2401.M3434D S&P supply/intake damper. Motorized (115/1/60). 34X34 inch. 3-4 Days $540.80
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S&P RCXII Dimensions

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