HstubeHVAC
Cushion Box
Galvanised SteelHstube Quality
Ducts & Metal Fittings

Cushion Box

Cushion Box in Galvanised Steel finish. Available in 6 sizes from 300×300 230D 08" to 450×450 330D 14". Custom sizes available.

  • Galvanised Steel finish
  • 6 size options
  • Custom sizes available
  • Size range: 300×300 230D 08" — 450×450 330D 14"
  • Item code series: CB300D230N

Technical Specifications

FinishGalvanised Steel
SKU Count6
Size Range300×300 230D 08" — 450×450 330D 14"
Custom SizesYes
Item Code PrefixCB300D230N

Available Sizes (6 SKUs)

Item CodeSizeUnit
CB300D230N08300×300 230D 08"mm
CB300D230N10300×300 230D 10"mm
CB450D330N08450×450 230D 08"mm
CB450D330N10450×450 330D 10"mm
CB450D330N12450×450 330D 12"mm
CB450D330N14450×450 330D 14"mm

Custom sizes available on request. Contact us for non-standard dimensions.

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12h response
UL / CE certified
OEM available

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Cushion Box — FAQ

What is the MOQ for the Cushion Box?
Minimum order quantity for the Cushion 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 Cushion 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 Cushion 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 Cushion 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.

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