ECOTIGHT SHUTTER IMPROVES FAN EFFICIENCY
AND REDUCES COLD AIR LEAKAGE

Manufactured to your desired custom size, the EcoTight Shutter is made of heavy-duty, durable twin wall profile frame for longer life and stability. Its aerodynamic design allows for maximum air performance while minimizing light into animal room. Visit EcoTight Shutter to learn more.

PATENT PENDING

Double L Group, LLC EcoTight Shutter logo

BUILT TO YOUR
CUSTOM DESIRED SIZE!

Made in North America

TOPJET INSULATED SHUTTER
WITH COUNTERWEIGHTED LOUVER BLADES

Double L's TopJet Gravity Insulated Shutter minimizes air leakage and seals up tight with no cracks or spaces for air to come through. Its patent pending design has counterweight louver blades made of 3/4" insulated board encased in fiberglass with an R-value of approximately 6. Visit TopJet Gravity Insulated Shutter to learn more.

IS8 TOPJET INSULATED SHUTTER (8 BLADES)

Part #90338
59" x 59" x 12"  (1,498.6 x 1,498.6 x 305mm)
PATENT PENDING
Made In USA

PVC FAN REPLACEMENT SHUTTERS

Ideal for new construction or as replacement shutters, Double L's PVC Shutters are constructed of tough PVC to handle harsh environments. Fully tested as described by the Air Movement and Control Association, Double L's Custom PVC Shutters are manufactured to ISO9001 standards. Custom-made to specifications and with a patented design, Double L's PVC Shutters are low maintenance, can withstand heavy pressure washing, and are simple to repair. PVC Shutters will never rust, rot, or corrode. All parts are replaceable.