Opens in a new tab
Free standard shipping on eligible US orders $500+

Gray South 14x6x8 Insulated Register Box w/Flange R6 Flex Duct Boot

SKU: 14X6X8-3600F
Weight 5 lbs
Condition

New

Manufacturer Part Number

14X6X8-3600F

Brand

Gray South

$33.70

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing
QuantityUnit priceSaving
1–4$33.700%
5–9$32.025%
10+$30.3310%

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.

Bulk quantity & quote

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

Request this quantity →

Need a firm ship date? Availability may include supplier stock. Confirm availability before ordering for time-sensitive work.

Processing times & shipping information

Gray South 14x6x8 Insulated Register Box w/ Flange (R6)

MFG# 14X6X8-3600F

This Gray South insulated register box (HVAC boot) is designed for connecting 8″ round flex duct to a 14″ x 6″ supply register opening. The boot is insulated with black-faced R6 duct board, helping reduce heat loss, improve energy efficiency, and minimize condensation.

The flange design allows for easier mounting to drywall or ceiling framing. Pre-printed size and R-value markings help with jobsite identification and code compliance.

Specifications:

  • Register opening: 14″ x 6″

  • Round takeoff: 8″

  • Insulation: R6

  • Style: Insulated w/ flange

  • Brand: Gray South

Ideal For:

✔ Residential HVAC installs
✔ New construction duct systems
✔ Flex duct supply runs
✔ Ceiling register boots

Match the manufacturer part number and equipment model to the listing. Check connection sizes, fuel type, pressure or capacity, voltage and dimensions where applicable. A similar appearance or part number alone does not confirm compatibility.

For help, send a parts inquiry with the part number, equipment model, label photos and quantity. Manufacturer documents and item-specific information, when supplied, are in the product details above.

Availability may include our inventory and supplier sources. Listed stock does not by itself confirm immediate dispatch. Ask us to confirm a ship date before ordering for time-sensitive work.

Shipping methods and charges appear at checkout where available. Freight, oversized and specially handled items may require a quote. See our Shipping Policy for processing periods, restrictions and delivery information.

Explore related products

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