Custom Rectangle-to-rectangle duct adapter STL 3D file 200x50 mm to 195x44 mm – transition: 80 mm 📦#10596

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Rectangular duct adapter downloadable as STL 3D file. The internal cross-section on side A is 200x50 mm (rectangular), while side B is 195x44 mm (rectangular). The sleeve on side A provides an insertion length of 20 mm, and the sleeve on side B 30 mm. Between the two sleeves, the transition section adds 80 mm, giving an overall length of 130 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier. Side B is offset by 14 mm along the Z axis relative to side A.
Generation date: 2026-07-31
3D Model Rectangle-to-rectangle duct adapter STL 3D file 200x50 mm to 195x44 mm – transition: 80 mm

3D model download

Free
  • rectangular-to-rectangular-duc_model10596-nb0_dd{id}.stl : 60.8 Ko
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
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Values for this model

This model was generated by the Rectangular-to-rectangular duct adapter template, with the following values:
Parameter Value
#1 side A internal width 200 mm (≃7 7/8 in)
#2 side A internal height 50 mm (≃1.97 in)
#3 sleeve length on side A 20 mm (≃0.79 in)
#4 side B internal width 195 mm (≃7 11/16 in)
#5 side B internal height 44 mm (≃1.73 in)
#6 sleeve length on side B 30 mm (≃1 3/16 in)
#7 thickness 2 mm (≃0.08 in)
#8 transition length 80 mm (≃3.15 in)
#9 Y offset 0 mm (0 in)
#10 Z offset 14 mm (≃9/16 in)
#11 end chamfers inside
Metadata Value
external width on side A 204 mm (≃8.03 in)
external height on side A 54 mm (≃2 1/8 in)
external width on side B 199 mm (≃7.83 in)
external height on side B 48 mm (≃1 7/8 in)
total length 130 mm (≃5 1/8 in)
illustration of the parameters
Parameter overview

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 side A internal width widRA
#2 side A internal height heiRA
#3 sleeve length on side A lenSA
#4 side B internal width widRB
#5 side B internal height heiRB
#6 sleeve length on side B lenSB
#7 thickness thi
#8 transition length tra
#9 Y offset ofsY
#10 Z offset ofsZ
#11 end chamfers cha

Related 3D models

To search for a model based on your own parameters, go to the template page Rectangular-to-rectangular duct adapter 

Rectangular duct adapter downloadable as STL 3D file. Side A offers an internal cross-section of 200x50 mm (rectangular) and side B uses 195x44 mm (rectangular). The insertion length on side A is 20 mm, while on side B it is 30 mm. The transition section between the two sides is 80 mm long, for an overall length of 130 mm (side A sleeve, transition and side B sleeve). The internal edges at the ends are chamfered to help guide the duct during insertion. Side B is offset by 15 mm along the Y axis relative to side A.
Parameter Value Unit
side A internal width 200 mm
side A internal height 50 mm
sleeve length on side A 20 mm
side B internal width 195 mm
side B internal height 44 mm
sleeve length on side B 30 mm
thickness 2 mm
transition length 80 mm
Y offset 15 mm
Z offset 0 mm
end chamfers inside
Rectangular duct connector provided as 3D STL file. Side A uses an internal cross-section of 220x90 mm (rectangular), whereas side B is 205x60 mm (rectangular). Both side A and side B sleeves share the same insertion length of 40 mm. Between the two sleeves, the transition section adds 50 mm, giving an overall length of 130 mm. Internal chamfers at the ends improve assembly and provide a smoother insertion of the mating duct. Side B is offset by 15 mm along the Z axis relative to side A.
Parameter Value Unit
side A internal width 220 mm
side A internal height 90 mm
sleeve length on side A 40 mm
side B internal width 205 mm
side B internal height 60 mm
sleeve length on side B 40 mm
thickness 3 mm
transition length 50 mm
Y offset 0 mm
Z offset 15 mm
end chamfers inside
Rectangular duct transition exported as STL 3D file. The internal cross-section on side A is 220x90 mm (rectangular), while side B is 205x60 mm (rectangular). Each sleeve provides an insertion length of 40 mm. The transition section between the two sides is 50 mm long, for an overall length of 130 mm (side A sleeve, transition and side B sleeve). The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 220 mm
side A internal height 90 mm
sleeve length on side A 40 mm
side B internal width 205 mm
side B internal height 60 mm
sleeve length on side B 40 mm
thickness 3 mm
transition length 50 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular pipe adapter exported as STL 3D file. Side A uses an internal cross-section of 228x98 mm (rectangular), whereas side B is 158x63 mm (rectangular). The sleeve on side A provides an insertion length of 20 mm, and the sleeve on side B 30 mm. The transition section between the two sides is 20 mm long, for an overall length of 70 mm (side A sleeve, transition and side B sleeve). Internal chamfers are added at the ends to make assembly and duct insertion easier.
Parameter Value Unit
side A internal width 228 mm
side A internal height 98 mm
sleeve length on side A 20 mm
side B internal width 158 mm
side B internal height 63 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular duct adapter provided as 3D STL file. The internal cross-section on side A is 200x20 mm (rectangular), while side B is 100x50 mm (rectangular). Each sleeve provides an insertion length of 20 mm. Between the two sleeves, the transition section adds 50 mm, giving an overall length of 90 mm. Internal chamfers at the ends improve assembly and provide a smoother insertion of the mating duct. An offset of 25 mm along the Z axis is applied to side B with respect to side A.
Parameter Value Unit
side A internal width 200 mm
side A internal height 20 mm
sleeve length on side A 20 mm
side B internal width 100 mm
side B internal height 50 mm
sleeve length on side B 20 mm
thickness 3 mm
transition length 50 mm
Y offset 0 mm
Z offset 25 mm
end chamfers inside
Rectangular adapter provided as 3D STL file. Side A offers an internal cross-section of 200x20 mm (rectangular) and side B uses 100x50 mm (rectangular). The sleeve insertion length is the same on both sides, 20 mm. The transition section runs for 50 mm and the overall length is 90 mm, sleeves included. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 200 mm
side A internal height 20 mm
sleeve length on side A 20 mm
side B internal width 100 mm
side B internal height 50 mm
sleeve length on side B 20 mm
thickness 3 mm
transition length 50 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular duct adapter downloadable as STL 3D file. Side A offers an internal cross-section of 220x33 mm (rectangular) and side B uses 220x26.5 mm (rectangular). The insertion length on side A is 25 mm, while on side B it is 24 mm. Between the two sleeves, the transition section adds 20 mm, giving an overall length of 69 mm. External chamfers at the ends help the adapter slide and seat more easily in the duct system.
Parameter Value Unit
side A internal width 220 mm
side A internal height 33 mm
sleeve length on side A 25 mm
side B internal width 220 mm
side B internal height 26.5 mm
sleeve length on side B 24 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside
3D STL file for rectangular duct transition. Side A offers an internal cross-section of 220x83 mm (rectangular) and side B uses 150x75 mm (rectangular). On side A, the sleeve length is 30 mm, and on side B it is 20 mm. The transition section runs for 70 mm and the overall length is 120 mm, sleeves included. External chamfers at the ends help the adapter slide and seat more easily in the duct system.
Parameter Value Unit
side A internal width 220 mm
side A internal height 83 mm
sleeve length on side A 30 mm
side B internal width 150 mm
side B internal height 75 mm
sleeve length on side B 20 mm
thickness 2 mm
transition length 70 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside
Rectangular duct fitting provided as 3D STL file. The internal cross-section on side A is 122.3x60.3 mm (rectangular), while side B is 116.3x56.3 mm (rectangular). The insertion length on side A is 25 mm, while on side B it is 30 mm. The transition section runs for 20 mm and the overall length is 75 mm, sleeves included. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 122.3 mm
side A internal height 60.3 mm
sleeve length on side A 25 mm
side B internal width 116.3 mm
side B internal height 56.3 mm
sleeve length on side B 30 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
3D STL file for rectangular duct connector. Side A uses an internal cross-section of 122.3x60.3 mm (rectangular), whereas side B is 116x56 mm (rectangular). The sleeve on side A provides an insertion length of 25 mm, and the sleeve on side B 30 mm. Between the two sleeves, the transition section adds 20 mm, giving an overall length of 75 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier.
Parameter Value Unit
side A internal width 122.3 mm
side A internal height 60.3 mm
sleeve length on side A 25 mm
side B internal width 116 mm
side B internal height 56 mm
sleeve length on side B 30 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular adapter provided as 3D STL file. Side A uses an internal cross-section of 214x84 mm (rectangular), whereas side B is 198x54 mm (rectangular). On side A, the sleeve length is 30 mm, and on side B it is 40 mm. Between the two sleeves, the transition section adds 40 mm, giving an overall length of 110 mm. The outer edges at the ends are chamfered, which simplifies inserting the adapter into the mating duct. An offset of 16 mm along the Z axis is applied to side B with respect to side A.
Parameter Value Unit
side A internal width 214 mm
side A internal height 84 mm
sleeve length on side A 30 mm
side B internal width 198 mm
side B internal height 54 mm
sleeve length on side B 40 mm
thickness 3 mm
transition length 40 mm
Y offset 0 mm
Z offset 16 mm
end chamfers outside
Rectangular adapter exported as STL 3D file. Side A uses an internal cross-section of 90x90 mm (square), whereas side B is 200x20 mm (rectangular). The insertion length on side A is 15 mm, while on side B it is 10 mm. The transition section between the two sides is 50 mm long, for an overall length of 75 mm (side A sleeve, transition and side B sleeve). Internal chamfers at the ends improve assembly and provide a smoother insertion of the mating duct. Relative to side A, side B is shifted by 25 mm along the Z axis.
Parameter Value Unit
side A internal width 90 mm
side A internal height 90 mm
sleeve length on side A 15 mm
side B internal width 200 mm
side B internal height 20 mm
sleeve length on side B 10 mm
thickness 2 mm
transition length 50 mm
Y offset 0 mm
Z offset 25 mm
end chamfers inside
Rectangular tube adapter downloadable as STL 3D file. Side A uses an internal cross-section of 243x33 mm (rectangular), whereas side B is 226.5x25 mm (rectangular). The insertion length on side A is 25 mm, while on side B it is 24 mm. Between the two sleeves, the transition section adds 20 mm, giving an overall length of 69 mm. External chamfers at the ends help the adapter slide and seat more easily in the duct system.
Parameter Value Unit
side A internal width 243 mm
side A internal height 33 mm
sleeve length on side A 25 mm
side B internal width 226.5 mm
side B internal height 25 mm
sleeve length on side B 24 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside
3D STL file for rectangular adapter. Side A uses an internal cross-section of 220x90 mm (rectangular), whereas side B is 180x95 mm (rectangular). Both side A and side B sleeves share the same insertion length of 40 mm. The transition section between the two sides is 30 mm long, for an overall length of 110 mm (side A sleeve, transition and side B sleeve). Internal chamfers are added at the ends to make assembly and duct insertion easier.
Parameter Value Unit
side A internal width 220 mm
side A internal height 90 mm
sleeve length on side A 40 mm
side B internal width 180 mm
side B internal height 95 mm
sleeve length on side B 40 mm
thickness 3 mm
transition length 30 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular duct connector exported as STL 3D file. The internal cross-section on side A is 90x90 mm (square), while side B is 200x20 mm (rectangular). The sleeve on side A provides an insertion length of 15 mm, and the sleeve on side B 10 mm. The transition section between the two sides is 60 mm long, for an overall length of 85 mm (side A sleeve, transition and side B sleeve). Internal chamfers are added at the ends to make assembly and duct insertion easier. An offset of 30 mm along the Z axis is applied to side B with respect to side A.
Parameter Value Unit
side A internal width 90 mm
side A internal height 90 mm
sleeve length on side A 15 mm
side B internal width 200 mm
side B internal height 20 mm
sleeve length on side B 10 mm
thickness 2 mm
transition length 60 mm
Y offset 0 mm
Z offset 30 mm
end chamfers inside
Rectangular duct connector downloadable as STL 3D file. The internal cross-section on side A is 225x90 mm (rectangular), while side B is 150x75 mm (rectangular). On side A, the sleeve length is 35 mm, and on side B it is 20 mm. Between the two sleeves, the transition section adds 100 mm, giving an overall length of 155 mm. External chamfers at the ends help the adapter slide and seat more easily in the duct system.
Parameter Value Unit
side A internal width 225 mm
side A internal height 90 mm
sleeve length on side A 35 mm
side B internal width 150 mm
side B internal height 75 mm
sleeve length on side B 20 mm
thickness 2 mm
transition length 100 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside
Rectangular duct fitting provided as 3D STL file. Side A uses an internal cross-section of 200x20 mm (rectangular), whereas side B is 100x50 mm (rectangular). The sleeve insertion length is the same on both sides, 30 mm. Between the two sleeves, the transition section adds 55 mm, giving an overall length of 115 mm. Inner and outer edges at both ends are left unchamfered. An offset of 12.7 mm along the Z axis is applied to side B with respect to side A.
Parameter Value Unit
side A internal width 200 mm
side A internal height 20 mm
sleeve length on side A 30 mm
side B internal width 100 mm
side B internal height 50 mm
sleeve length on side B 30 mm
thickness 2 mm
transition length 55 mm
Y offset 0 mm
Z offset 12.7 mm
end chamfers none
Rectangular adapter exported as STL 3D file. Side A uses an internal cross-section of 111.4x54.4 mm (rectangular), whereas side B is 110.4x54.4 mm (rectangular). Both side A and side B sleeves share the same insertion length of 25 mm. The transition section runs for 20 mm and the overall length is 70 mm, sleeves included. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 111.4 mm
side A internal height 54.4 mm
sleeve length on side A 25 mm
side B internal width 110.4 mm
side B internal height 54.4 mm
sleeve length on side B 25 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular conduit adapter provided as 3D STL file. The internal cross-section on side A is 90x90 mm (square), while side B is 200x20 mm (rectangular). The sleeve on side A provides an insertion length of 15 mm, and the sleeve on side B 10 mm. Between the two sleeves, the transition section adds 70 mm, giving an overall length of 95 mm. The internal edges at the ends are chamfered to help guide the duct during insertion. Relative to side A, side B is shifted by 35 mm along the Z axis.
Parameter Value Unit
side A internal width 90 mm
side A internal height 90 mm
sleeve length on side A 15 mm
side B internal width 200 mm
side B internal height 20 mm
sleeve length on side B 10 mm
thickness 2 mm
transition length 70 mm
Y offset 0 mm
Z offset 35 mm
end chamfers inside
Rectangular adapter exported as STL 3D file. Side A offers an internal cross-section of 225x59.5 mm (rectangular) and side B uses 114.5x95 mm (rectangular). The sleeve insertion length is the same on both sides, 10 mm. Between the two sleeves, the transition section adds 20 mm, giving an overall length of 40 mm. Internal chamfers at the ends improve assembly and provide a smoother insertion of the mating duct.
Parameter Value Unit
side A internal width 225 mm
side A internal height 59.5 mm
sleeve length on side A 10 mm
side B internal width 114.5 mm
side B internal height 95 mm
sleeve length on side B 10 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
3D STL file for rectangular duct fitting. The internal cross-section on side A is 225x59.5 mm (rectangular), while side B is 114.5x95 mm (rectangular). Each sleeve provides an insertion length of 20 mm. The transition section between the two sides is 20 mm long, for an overall length of 60 mm (side A sleeve, transition and side B sleeve). The wall is thin, with a thickness of 1 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 225 mm
side A internal height 59.5 mm
sleeve length on side A 20 mm
side B internal width 114.5 mm
side B internal height 95 mm
sleeve length on side B 20 mm
thickness 1 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular pipe adapter downloadable as STL 3D file. The internal cross-section on side A is 104x34 mm (rectangular), while side B is 100x30 mm (rectangular). The insertion length on side A is 25 mm, while on side B it is 15 mm. The transition section runs for 50 mm and the overall length is 90 mm, sleeves included. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 104 mm
side A internal height 34 mm
sleeve length on side A 25 mm
side B internal width 100 mm
side B internal height 30 mm
sleeve length on side B 15 mm
thickness 2 mm
transition length 50 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular vent adapter exported as STL 3D file. Side A offers an internal cross-section of 214x85 mm (rectangular) and side B uses 215x85 mm (rectangular). The sleeve insertion length is the same on both sides, 5 mm. Between the two sleeves, the transition section adds 20 mm, giving an overall length of 30 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 214 mm
side A internal height 85 mm
sleeve length on side A 5 mm
side B internal width 215 mm
side B internal height 85 mm
sleeve length on side B 5 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular pipe adapter provided as 3D STL file. Side A offers an internal cross-section of 214x87 mm (rectangular) and side B uses 215x87 mm (rectangular). Each sleeve provides an insertion length of 5 mm. Between the two sleeves, the transition section adds 20 mm, giving an overall length of 30 mm. Internal chamfers at the ends improve assembly and provide a smoother insertion of the mating duct.
Parameter Value Unit
side A internal width 214 mm
side A internal height 87 mm
sleeve length on side A 5 mm
side B internal width 215 mm
side B internal height 87 mm
sleeve length on side B 5 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside
Rectangular duct sleeve downloadable as STL 3D file. Side A uses an internal cross-section of 243x33 mm (rectangular), whereas side B is 229x28 mm (rectangular). The sleeve insertion length is the same on both sides, 25 mm. The transition section between the two sides is 20 mm long, for an overall length of 70 mm (side A sleeve, transition and side B sleeve). The outer edges at the ends are chamfered, which simplifies inserting the adapter into the mating duct.
Parameter Value Unit
side A internal width 243 mm
side A internal height 33 mm
sleeve length on side A 25 mm
side B internal width 229 mm
side B internal height 28 mm
sleeve length on side B 25 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside
3D STL file for rectangular adapter. Side A offers an internal cross-section of 243x33 mm (rectangular) and side B uses 234x30 mm (rectangular). On side A, the sleeve length is 25 mm, and on side B it is 26.5 mm. The transition section runs for 20 mm and the overall length is 71.5 mm, sleeves included. External chamfers at the ends help the adapter slide and seat more easily in the duct system.
Parameter Value Unit
side A internal width 243 mm
side A internal height 33 mm
sleeve length on side A 25 mm
side B internal width 234 mm
side B internal height 30 mm
sleeve length on side B 26.5 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside