Free standard shipping on eligible US orders $500+

Gray South 8×8 Square to 8″ Round Diffuser Box HVAC Duct Transition 8X8X8

SKU: 8X8X8-320

$26.78

Only 2 left in stock

Same-item volume pricing
QuantityUnit priceSaving
1–4$26.780%
5–9$25.445%
10+$24.1010%

Estimate for this quantity before shipping. Tax display follows store settings. Existing cart quantities can increase the tier. Only one offer applies; a coupon replaces automatic pricing. For 20+ units, contact support for a quote.

Available to order: 2.

Bulk quantity & quote

Enter the total quantity you need. We will confirm availability and a quote before you order.

Request this quantity →

Gray South 8×8 Square to 8″ Round Diffuser Box (HVAC Transition)

MFG# 8X8X8-320

This Gray South diffuser box is designed to convert an 8″ x 8″ square opening to an 8-inch round duct connection for HVAC supply and ventilation systems. Commonly used for ceiling diffuser installations, this square-to-round transition provides a clean, secure connection between ductwork and diffuser boots.

Made from durable galvanized steel for long-lasting performance and corrosion resistance.

Specifications:

  • Square opening: 8″ x 8″

  • Round connection: 8″

  • Material: Galvanized steel

  • Type: Diffuser box / square-to-round duct transition

Ideal For:

✔ Ceiling diffuser connections
✔ HVAC supply duct transitions
✔ Residential & light commercial duct systems
✔ New construction and retrofits

Product details

Part / SKU 8X8X8-320

Package includes

  • Gray South 8×8 Square to 8" Round Diffuser Box HVAC Duct Transition 8X8X8

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

Explore related products

More products in this category. Compare specifications and fit for your application.