A well-managed swine ventilation system requires hog inlets, whether it be ceiling air inlets, wall inlets, or ductwork. Double L offers an array of swine ceiling inlets to fit your pig needs.

U.S. PATENT NO. 10,638,719

Part 90302P
28" x 28" rough opening
Approx. 4,144 cfm @ 0.10 SP
Ship Weight: 18 lbs
Imported
ACTUATED ONLY

U.S. PATENT NO. 10,638,719

Part 90300 (Winched)
29" x 24.75" rough opening
Approx. 3,107 cfm @ 0.10 SP
Ship Weight: 14 lbs
Imported
ACTUATED ONLY

U.S. PATENT NO. 10,638,719

Part 90301 (Winched)
44" x 24.75" rough opening
Approx. 4,750 cfm @ 0.10 SP
Ship Weight: 18 lbs
Imported
ACTUATED ONLY

Part 90840 (Winched)
Part 90841 (Counterweighted)
29" x 24.5" rough opening
Approx. 2,400 cfm @ 0.05 SP
Ship Weight: 13 lbs
Made In Canada

Part 90827 (Winched)
Part 90825 (Counterweighted)
18.5" x 21.5" rough opening
Approx. 1,300 cfm @ 0.05 SP
Ship Weight: 8 lbs
Made In Canada

Part 90843 (Winched)
45" x 23.75" rough opening
Approx. 4,000 cfm @ 0.05 SP
Ship Weight: 15 lbs
Made In Canada

Part 90810 (Winched)
Part 90809 (Counterweighted)
23" x 14" rough opening
Approx. 1,200 cfm
Made In USA

Part 90814 (Winched)
Part 90813 (Counterweighted)
34" x 18.5" rough opening
Approx. 2,400 cfm
Made In USA

QUAD / C2000 INLET REPLACEMENT

Part 90837 (Winched)
Part 90836 (Counterweighted)
27.5" x 27.5" rough opening
Approx. 2,490 cfm @ .05 sp
Ship Weight: 8 lbs
Made In Canada

Part 90635
22.5" x 22.5" rough opening
Approx. 2,089 cfm @ .125 sp
Ship Weight: 22 lbs (2 inlets per box)
Made In USA

U.S. PATENT NO. 9,445,574

Part 90671
23.75" x 23.75" rough opening
Approx. 2,518 cfm @ .15 sp
Ship Weight: 8 lbs
Made In Canada

U.S. PATENT NO. 9,445,574

Part 90678
23.75" x 23.75" rough opening
Approx. 2,048 cfm @ .15 sp
Ship Weight: 9 lbs
Made In Canada

U.S. PATENT NO. 6,475,078

Part 90640
22.5" x 22.5" rough opening
Approx. 1,812 cfm @ .125 sp
Ship Weight: 26 lbs (2 inlets per box)
Made In USA