The Pruden Polystainless Exhaust Fan from J&D Manufacturing is a proven performer thats built to last. Polystainless fans are manufactured with a poly and stainless steel construction for the harshest agricultural environments. The extended poly weather hood protects the fan from wind and weather for maximum efficiency all year long.
- Impact resistant, molded, high-density polyethylene housing
- Stainless steel venturi, motor mount and hardware for ultimate corrosion resistance
- Durable, molded, poly weather hood for efficient operation in all wind and weather conditions
- White powder-coated hood guard to prevent birds from entering
- 3- or 4-bladed poly propellers with cast aluminum hub
- One-piece poly discharge cone available for 24 fans
- Direct drive motor
- 10 Year Warranty on poly fan body, weather hood and discharge cone
- High-efficiency totally enclosed, maintenance-free, motors have completely sealed ball bearings, and are covered by a Two Year Warranty
- Single Phase, 60 Hz, 115/230 Volts
Fan Performance Specifications

Pruden Polystainless Fan with Poly Weather Hood
Part No. | Size | HP | Amps* | Spd | RPM | @ .05" SP CFM CFM/Watt |
Prop | Shutter |
---|---|---|---|---|---|---|---|---|
PFPS12C | 12" |
1/6 | 2.0/1.0 | 1/Var^ | 1,625 | 1,395 / 5.9 | 3-Ply | Yes |
PFPS12CWO | 12" |
1/6 | 2.0/1.0 | 1/Var^ | 1,625 | 1,395 / 5.9 | 3-Ply | No |
PFPS16D | 16" | 1/4 | 3.2/1.6 | 1/Var^ | 1,625 | 2,540 / 11.1 | 3-Ply | Yes |
PFPS16DWOS | 16" | 1/4 | 3.2/1.6 | 1/Var^ | 1,625 | 2,540 / 11.1 | 3-Ply | No |

Pruden Polystainless Fan with Poly Weather Hood
Part No. | Size | HP | Amps* | Spd | RPM | @ .05" SP CFM CFM/Watt |
Prop | Shutter |
---|---|---|---|---|---|---|---|---|
PFPS20E | 20" | 1/4 | 3.2/1.6 | 1/Var^ | 1,625 | 3,320 / 14.1 | 3-Ply | Yes |
PFPS20E-WO | 20" | 1/4 | 3.2/1.6 | 1/Var^ | 1,625 | 3,320 / 14.1 | 3-Ply | No |
PFPS20G | 20" | 1/3 | 4.2/2.1 | 1/Var^ | 1,625 | 4,095 / 12.3 | 3-Ply | Yes |
PFPS20GG | 20" | 1/2 | 5.5/2.8 | 1/Var^ | 1,700 | 4,765 / 14.5 | 3-Ply | Yes |
PFPS20GWO | 20" | 1/3 | 4.2/2.1 | 1/Var^ | 1,625 | 4,095 / 12.3 | 3-Ply | No |
PFPS24H | 24" | 1/3 | 3.8/1.9 | 1 | 1,075 | 5,210 / 14.9 | 4-Ply | Yes |
PFPS24H-WO | 24" | 1/3 | 3.8/1.9 | 1 | 1,075 | 5,210 / 14.9 | 4-Ply | No |

Pruden Polystainless Fan with Cone
Part No. | Size | HP | Amps* | Spd | RPM | @ .05" SP CFM CFM/Watt |
Prop | Shutter |
---|---|---|---|---|---|---|---|---|
PFPS24C | 24" | 1/3 | 3.8/1.9 | 1 | 1,075 | 5,850 / 17.5 | 4-Ply | Yes |
PFPS24C-WO | 24" | 1/3 | 3.8/1.9 | 1 | 1,075 | 5,850 / 17.5 | 4-Ply | No |
* - Amp information as documented on motor name plate
^ - Variable speed fans require separate variable speed control to adjust fan speed.
Rough Opening
Part No. | Size | Rough Opening |
---|---|---|
PFPS12C | 12" |
18 3/4" x 18 3/4" |
PFPS12CWO | 12" |
18 3/4" x 18 3/4" |
PFPS16D | 16" | 21 3/4" x 21 3/4" |
PFPS16DWOS | 16" | 21 3/4" x 21 3/4" |
PFPS24C | 24" | 29" x 29" |
PFPS24C-WO | 24" | 29" x 29" |
PFPS20E | 20" | 25 3/4" x 25 3/4" |
PFPS20E-WO | 20" | 25 3/4" x 25 3/4" |
PFPS20G | 20" | 25 3/4" x 25 3/4" |
PFPS20GG | 20" | 25 3/4" x 25 3/4" |
PFPS20GWO | 20" | 25 3/4" x 25 3/4" |
PFPS24H | 24" | 29" x 29" |
PFPS24H-WO | 24" | 29" x 29" |
How do I size my fan and shutters system?

1. The first thing that you need to determine is the amount of air required. This is stated in CFM (Cubic Feet of Air per Minute).
2. Use the following formula to determine the CFM required for your greenhouse:
CFM = Length x Width x Height
Example: Greenhouse 12' wide x 24' long x 12' high requires 3456 CFM (12 x 24 x 12 = 3456)
3. Reference the above table. Select the appropriate combination of fan(s) to achieve the necessary CFM rating. Be sure to match the total CFM output for your exhaust fan(s) to the CFM ratings for your Inlet Shutters.
Click here to view fan installation detail
Free Shipping
This item ships free via Motor Freight Carrier - almost anywhere in the Contiguous United States!
On rare occasions addresses with limited access such as islands or major metropolitan areas (ie: New York City) may incur additional delivery fees; if so, you will be contacted to confirm the extra shipping cost before your order is processed. Shipments to Alaska or Hawaii qualify for free shipping to any West Coast port. Please contact us for special shipping rates from the West Coast to Alaska or Hawaii.
Motor Freight Agreement
- Full Size Semi: Your location must be able to accommodate a full size semi-truck trailer of up to 70ft. in length.
- Someone Must Be Present: You or someone else authorized must be present to unload the shipment. Exact delivery date will be arranged via phone by freight company.
P65 WARNING: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to P65 Warnings.