Caldwell

12" 4-Way Cross

12" four-way cross for sending aeration airflow in four directions from a single point. Ideal for laying out even coverage across a bigger bin floor.

12" Perforated Duct - 4' Long - 20 Guage - Interlocking Seam

12" perforated aeration duct, 4 feet long, in 20-gauge steel with an interlocking seam. The perforations let air escape evenly into the grain, so you get good, consistent aeration the length of the...

12" Raised Y Fan Transition with Angle Ring Flange

12" raised Y fan transition with an angle ring flange, built to lift and split your fan's airflow into a Y configuration. The angle ring flange makes for a strong, sealed connection to the ducting.

12" Reinforcement Ring

12" reinforcement ring, sold one per pack and finished in black. You'll want two of these for each solid or perforated duct section to keep the ducting round and rigid under the weight of the grain.

12" Solid End Cap

12" solid end cap to close off the end of a solid aeration duct run. Keeps grain out and air in, finishing your ducting line cleanly.

12" Y-Box

12" Y-box for splitting a single aeration duct run into two directions. A handy fitting when you need to branch your airflow across a larger bin floor.

18" 4 Way Cross

18" four-way cross to send aeration airflow out in four directions from one point. The right fitting for even coverage under a big bin with larger ducting.

18" Perforated Duct - 4' Long - 20 Guage - Interlocking Seam (Canola)

18" perforated aeration duct, 4 feet long, in 20-gauge steel with an interlocking seam. The perforations are sized for canola. Need cereal-grain perforations instead? Just call the office and we'll...

18" Perforated End Cap (Canola)

18" perforated end cap with canola-sized perforations, so air keeps flowing into the grain right to the end of the run. Looking for cereal-grain perforations? Give the office a call.

18" Raised Y Fan Transition with Angle Ring Flange

18" raised Y fan transition with an angle ring flange, sized for larger fans and ducting. It raises and splits the airflow into a Y, with the angle ring flange giving you a tight, dependable seal.

18" Reinforcement Ring

18" reinforcement rings keep your larger ducting round and rigid under load. New ducts need three rings per 4-foot section — and for the 18" duct you'll want one of each color. Order...

18" Solid Duct - 4' long - 22 Guage - Interlocking Seam

18" solid aeration duct, 4 feet long, in heavy 22-gauge steel with an interlocking seam. The larger diameter carries more air for bigger fans and deeper grain, with no perforations so the air goes...