Galvanised SteelHstube Quality
Return Air Box
Return Air Box in Galvanised Steel finish. Available in 72 sizes from RETURN AIR BOX 1000×400 2×14" to RETURN AIR BOX 900×600 2×16". Custom sizes available.
- Galvanised Steel finish
- 72 size options
- Custom sizes available
- Size range: RETURN AIR BOX 1000×400 2×14" — RETURN AIR BOX 900×600 2×16"
- Item code series: RAB1000400-
Technical Specifications
| Finish | Galvanised Steel |
| SKU Count | 72 |
| Size Range | RETURN AIR BOX 1000×400 2×14" — RETURN AIR BOX 900×600 2×16" |
| Custom Sizes | Yes |
| Item Code Prefix | RAB1000400- |
Available Sizes (72 SKUs)
| Item Code | Size | Unit |
|---|---|---|
| RAB1000400-214 | RETURN AIR BOX 1000×400 2×14" | mm |
| RAB1000500-216 | RETURN AIR BOX 1000×500 2×16" | mm |
| RAB1150550-116 | RETURN AIR BOX 1150×550 1×16" | mm |
| RAB1150550-118 | RETURN AIR BOX 1150×550 1×18" | mm |
| RAB1150550-212 | RETURN AIR BOX 1150×550 2×12" | mm |
| RAB1150550-214 | RETURN AIR BOX 1150×550 2×14" | mm |
| RAB1150550-216 | RETURN AIR BOX 1150×550 2×16" | mm |
| RAB1150550-218 | RETURN AIR BOX 1150×550 2×18" | mm |
| RAB1200600-216 | RETURN AIR BOX 1200×600 2×16" | mm |
| RAB350350-114 | RETURN AIR BOX 350×350 1×14" | mm |
| RAB400400-112 | RETURN AIR BOX 400×400 1×12" | mm |
| RAB400400-114 | RETURN AIR BOX 400×400 1×14" | mm |
| RAB400400-116 | RETURN AIR BOX 400×400 1×16" | mm |
| RAB500400-114 | RETURN AIR BOX 500×400 1×14" | mm |
| RAB500400-116 | RETURN AIR BOX 500×400 1×16" | mm |
| RAB500500-116 | RETURN AIR BOX 500×500 1×16" | mm |
| RAB550550-110 | RETURN AIR BOX 550×550 1×10" | mm |
| RAB550550-112 | RETURN AIR BOX 550×550 1×12" | mm |
| RAB550550-114 | RETURN AIR BOX 550×550 1×14" | mm |
| RAB550550-116 | RETURN AIR BOX 550×550 1×16" | mm |
| RAB550550-118 | RETURN AIR BOX 550×550 1×18" | mm |
| RAB600400-114 | RETURN AIR BOX 600×400 1×14" | mm |
| RAB600400-116 | RETURN AIR BOX 600×400 1×16" | mm |
| RAB600400-118 | RETURN AIR BOX 600×400 1×18" | mm |
| RAB600500-116 | RETURN AIR BOX 600×500 1×16" | mm |
| RAB700400-114 | RETURN AIR BOX 700×400 1×14" | mm |
| RAB700400-116 | RETURN AIR BOX 700×400 1×16" | mm |
| RAB700450-214 | RETURN AIR BOX 700×450 2×14" | mm |
| RAB700500-114 | RETURN AIR BOX 700×500 1×14" | mm |
| RAB700500-116 | RETURN AIR BOX 700×500 1×16" | mm |
| RAB700500-214 | RETURN AIR BOX 700×500 2×14" | mm |
| RAB700500-216 | RETURN AIR BOX 700×500 2×16" | mm |
| RAB700550-116 | RETURN AIR BOX 700×550 1×16" | mm |
| RAB700550-214 | RETURN AIR BOX 700×550 2×14" | mm |
| RAB750400-114 | RETURN AIR BOX 750×400 1×14" | mm |
| RAB750400-116 | RETURN AIR BOX 750×400 1×16" | mm |
| RAB750400-212 | RETURN AIR BOX 750×400 2×12" | mm |
| RAB750400-214 | RETURN AIR BOX 750×400 2×14" | mm |
| RAB750400-216 | RETURN AIR BOX 750×400 2×16" | mm |
| RAB750450-116 | RETURN AIR BOX 750×450 1×16" | mm |
| RAB750450-214 | RETURN AIR BOX 750×450 2×14" | mm |
| RAB750450-216 | RETURN AIR BOX 750×450 2×16" | mm |
| RAB750500-114 | RETURN AIR BOX 750×500 1×14" | mm |
| RAB750500-116 | RETURN AIR BOX 750×500 1×16" | mm |
| RAB750500-214 | RETURN AIR BOX 750×500 2×14" | mm |
| RAB750500-216 | RETURN AIR BOX 750×500 2×16" | mm |
| RAB750550-114 | RETURN AIR BOX 750×550 1×14" | mm |
| RAB750550-116 | RETURN AIR BOX 750×550 1×16" | mm |
| RAB750550-118 | RETURN AIR BOX 750×550 1×18" | mm |
| RAB750550-214 | RETURN AIR BOX 750×550 2×14" | mm |
| RAB750550-216 | RETURN AIR BOX 750×550 2×16" | mm |
| RAB900400-114 | RETURN AIR BOX 900×400 1×14" | mm |
| RAB900400-116 | RETURN AIR BOX 900×400 1×16" | mm |
| RAB900400-212 | RETURN AIR BOX 900×400 2×12" | mm |
| RAB900400-214 | RETURN AIR BOX 900×400 2×14" | mm |
| RAB900400-216 | RETURN AIR BOX 900×400 2×16" | mm |
| RAB900450-116 | RETURN AIR BOX 900×450 1×16" | mm |
| RAB900450-214 | RETURN AIR BOX 900×450 2×14" | mm |
| RAB900450-216 | RETURN AIR BOX 900×450 2×16" | mm |
| RAB900500-114 | RETURN AIR BOX 900×500 1×14" | mm |
| RAB900500-116 | RETURN AIR BOX 900×500 1×16" | mm |
| RAB900500-118 | RETURN AIR BOX 900×500 1×18" | mm |
| RAB900500-214 | RETURN AIR BOX 900×500 2×14" | mm |
| RAB900500-216 | RETURN AIR BOX 900×500 2×16" | mm |
| RAB900550-116 | RETURN AIR BOX 900×550 1×16" | mm |
| RAB900550-118 | RETURN AIR BOX 900×550 1×18" | mm |
| RAB900550-212 | RETURN AIR BOX 900×550 2×12" | mm |
| RAB900550-214 | RETURN AIR BOX 900×550 2×14" | mm |
| RAB900550-216 | RETURN AIR BOX 900×550 2×16" | mm |
| RAB900550-218 | RETURN AIR BOX 900×550 2×18" | mm |
| RAB900600-214 | RETURN AIR BOX 900×600 2×14" | mm |
| RAB900600-216 | RETURN AIR BOX 900×600 2×16" | mm |
Custom sizes available on request. Contact us for non-standard dimensions.
12h response
UL / CE certified
OEM available
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Return Air Box — FAQ
What is the MOQ for the Return Air Box?
Minimum order quantity for the Return Air Box depends on customization level. Standard catalog items typically start at 100–500 pieces. Custom specifications usually require 500–2,000 pieces. Contact our sales team for a precise quote.
What is the lead time for Return Air Box?
Standard catalog items ship within 15–25 business days from our China facility. Custom or OEM orders typically require 30–45 days. US spiral duct products can ship within 5–10 days from Houston, TX.
Can I get the Return Air Box with custom specifications?
Yes. We offer full OEM services including custom dimensions, materials, finishes, and packaging. Share your drawings or specifications and we will provide a quote with lead time within 12 hours.
What certifications does the Return Air Box have?
Our products carry UL, CE, M1, and AWTA certifications depending on the product line. All products are manufactured under ISO quality management standards. View our full certification list.
Need a Custom Version?
We can modify dimensions, materials, finishes, and packaging to match your exact specifications. OEM and private label available.