Round Jet Diffuser (PJD)

High-throw jet diffuser designed to project supply air towards occupied level in high-ceiling spaces and stairwells. Flush-mounted and adjustable.

Available sizes and prices will be added after the trade price list is confirmed.

Choose the right Round Jet Diffuser (PJD)

Select by nominal neck size, airflow duty, mounting position and the required finish or damper option. Available options are grouped on this page so you can compare compatible sizes without searching through duplicate product pages.

Browse all grilles, diffusers and air valves or ask the DuctFix team for product-selection help.

Round Jet Diffuser (PJD) frequently asked questions

How do I choose the correct size and configuration?

Use the nominal neck or opening size and check the intended supply, return or extract duty. Contact DuctFix if you need help with airflow, throw, finish or damper selection.

Are other sizes or finishes available?

Availability depends on the product range. Where a required option is not listed, send DuctFix the model, opening size and application details for confirmation.

Lead time and delivery

Availability varies by size and specification. Stocked items can usually be dispatched promptly, while made-to-order items may require additional lead time. Delivery charges and available services are calculated at checkout. Contact DuctFix before ordering if your project has a fixed delivery date.