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Shipping Update: Due to recent fuel and freight increases, a temporary adjustment has been applied to shipping rates.
We’re keeping overall pricing as stable as possible and will review regularly.

Grilles, Diffusers & Registers

Our wide selection of grilles, registers, diffusers, and accessories includes a variety of shapes and sizes to meet any application and budget requirement.

An effective HVAC system needs to be made up of the correct components, positioned perfectly in each room in a building to ensure an even air  distribution.

Grilles and Diffusers: What’s the difference?
Although grilles and diffusers job roles are similar, they do have some major differences.

Grilles can be used to either supply or return air, coming usually in a fixed blade. Grills are static and have fixed openings, the volume is constant as long as the fan volume is constant.

Grilles can be used for different applications and are often installed in vertical surfaces such as walls or doors.

Diffusers on the other hand can direct air in more directions than just up or down and, depending on the type of diffuser it is, can have several configurations which allow for multiple air pattern control.

Code Product Price Min.
Quantity
Status Quantity
SR4025 SR4025 Square 400 to Round 250 Insulated Adaptor
RRP $78.00
$67.83
1 Manufactured 1-2 Days
SR4030 SR4030 Square 400 to Round 300 Insulated Adaptor
RRP $91.50
$79.57
1 Manufactured 1-2 Days
SR4035 SR4035 Square 400 to Round 350 Insulated Adaptor
RRP $82.00
$71.31
1 Manufactured 1-2 Days
SR4040 SR4040 Square 400 to Round 400 Metal Adaptor
RRP $90.00
$78.27
1 Manufactured 1-2 Days
SR4520 SR4520 Square 450 to Round 200 Insulated Adaptor
RRP $81.00
$70.44
0 Manufactured 1-2 Days
SR4525 SR4525 Square 450 to Round 250 Insulated Adaptor
RRP $81.00
$70.44
1 Manufactured 1-2 Days
SR4530 SR4530 Square 450 to Round 300 Insulated Adaptor
RRP $100.00
$85.96
0 Available from Stock
SR4535 SR4535 Square 450 to Round 350 Insulated Adaptor
RRP $86.00
$74.79
1 Available from Stock
SR4540 SR4540 Square 450 to Round 400 Insulated Adaptor
RRP $95.00
$82.61
1 Manufactured 1-2 Days
SR4545 SR4545 Square 450 to Round 450 Metal Adaptor
RRP $97.00
$84.35
1 Available from Stock
Manufactured 1-2 Days
Square 400 to Round 250 Insulated Adaptor SR4025
RRP $78.00
$67.83
Min.Quantity
1
Manufactured 1-2 Days
Square 400 to Round 300 Insulated Adaptor SR4030
RRP $91.50
$79.57
Min.Quantity
1
Manufactured 1-2 Days
Square 400 to Round 350 Insulated Adaptor SR4035
RRP $82.00
$71.31
Min.Quantity
1
Manufactured 1-2 Days
Square 400 to Round 400 Metal Adaptor SR4040
RRP $90.00
$78.27
Min.Quantity
1
Manufactured 1-2 Days
Square 450 to Round 200 Insulated Adaptor SR4520
RRP $81.00
$70.44
Manufactured 1-2 Days
Square 450 to Round 250 Insulated Adaptor SR4525
RRP $81.00
$70.44
Min.Quantity
1
Available from Stock
Square 450 to Round 300 Insulated Adaptor SR4530
RRP $100.00
$85.96
Available from Stock
Square 450 to Round 350 Insulated Adaptor SR4535
RRP $86.00
$74.79
Min.Quantity
1
Manufactured 1-2 Days
Square 450 to Round 400 Insulated Adaptor SR4540
RRP $95.00
$82.61
Min.Quantity
1
Available from Stock
Square 450 to Round 450 Metal Adaptor SR4545
RRP $97.00
$84.35
Min.Quantity
1