Aluminum Shutter

Item No. FA-VRSG
Free Shipping See Details Currently on this product, there may be as much as a one week lead-time for shipping from date of order. Motorized aluminum shutters used as outside air intake or free-air exhaust when connected to a controller. Outdoor air is drawn in through this motorized shutter and hot
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Currently on this product, there may be as much as a one week lead-time for shipping from date of order.

Motorized aluminum shutters used as outside air intake or free-air exhaust when connected to a controller. Outdoor air is drawn in through this motorized shutter and hot air is exhausted through a motorized shutter fan. Can also be used as exhaust shutter with an evaporative cooler. 

Dimensions for the shutter kit are 12", 16", 18", 20", 24", or 30".

Standard Features

  • High efficiency shutter with tie bar to eliminate shutter flapping.
  • Powered Aluminum Intake Shutters or free-air exhaust.
  • Nylons bearings; solid shafts; drawn cup-type sleeves on all movable linkage.
  • Frame of heavy aluminum extrusion with 1/2" channel lock water stop with precision milled and welded corners for durability.
  • Interlocking blades for maximum weather seal.
  • Constructed with rigid "T" section center member.
  • Optional Shutter Motor Kit available to turn any shutter into a power shutter.


Hobby Greenhouse Motorized Inlet Shutter Installation (PDF)

Thermostat - How-to-Wire for Heating or Cooling (PDF)

Performance Specifications

Select desired shutter model from drop down box at the top right of the page. Sizing information below.

Model NO.DescriptionCFMRough-In Opening
VRSG12ASingle Panel Motorized Shutter50012.5" x 12.5"
VRSG16ASingle Panel Motorized Shutter89016.5" x 16.5"
VRSG18ASingle Panel Motorized Shutter112518.5" x 18.5"
VRSG20ASingle Panel Motorized Shutter138820.5" x 20.5"
VRSG24ASingle Panel Motorized Shutter200024.5" x 24.5"
VRSG30ASingle Panel Motorized Shutter312530.5" x 30.5"
VRSG36ADouble Panel Motorized Shutter500036.5" x 36.5"
VRSG40ADouble Panel Motorized Shutter630040.5" x 40.5"
VRSG42ADouble Panel Motorized Shutter700042.5" x 42.5"
VRSG48ADouble Panel Motorized Shutter900048.5" x 48.5"
VRSG54ADouble Panel Motorized Shutter1200054.5" x 54.5"
VRSG60ADouble Panel Motorized Shutter1400060.5" x 60.5"

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 Continental 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.
LTL Freight Type GROUND
Standard Drop Shipment Code DROP SHIP
Replenishment System Purchase
Available for Drop Shipment Yes
Item Tracking Code PARENT
Reviews (3)
  • Top Quality Shutters
    Heavy gauge aluminum high quality shutter! Sturdy, and strong this shutter will last for years and years! As always dealing with GMS and my Sales Rep River, made this purchase as perfect as it could be!
  • 24 inch Aluminum Shutter
    So far, so good! I bought a pair of these to replace some PVC louver shutters that completely failed during a "bomb cyclone" we had in March 2019. These aluminum ones are a more rigid material, so they don't have the problem of flexing in high winds and blowing apart. They've already been through 50 mph winds with 60 mph gusts, and I do not anticipate that they'll have any problems with the 80-100 mph winds we sometimes get here, but time will tell. One word of advice though, they will flop open if hit with a direct blast of wind, so if that's a problem in your area, you might want to install a protective barrier over them when it's very windy.
  • Terrible - Waste of money
    I would recommend that you look elsewhere when buying these operating louvered shutters. I purchased 2 shutter kits for my greenhouse in June of 2017 and installed them later in the year in August or September. Not only did one of the shutters fall apart during the first really windy day in October, but when I called customer service, they told me that it didn't matter that the shutters had only been installed for one month, they were not responsible for any warranty on them. Additionally, the other shutter is now coming apart. I have found that the design of the operator pull chain routing on double panel vents is most likely the cause of the problem. I cannot post a picture on this review but I can try to describe the problem. The operator is mounted below the vent and the two chains are attached to the actuator lever on the operator. The other ends of the chains are attached to the upper end of the louver styles near the end of the return spring. The chain creates a V from the motor to the styles. Looking at it from the operator side or from inside the greenhouse, the chain going to the right side of the vent is not a problem. When the operator pulls this chain, the stresses on the style to louver connection rivets is carried by the individual brackets. However, on the left side, the stresses are carried totally by the fragile aluminum rivets. Over time, these have failed and now I have two worthless pieces of aluminum. I am not even going to try to contact their customer service department this time. Oh, and to add to this, the operator for the first louver is now jammed and is also added to the junk pile. This was a complete waste of money.