ABS Plastic Round Ceiling Cone Diffuser Grill Vent 150mm/200mm/250mm/300mm

  • $24.99
    Unit price per 
Tax included. Shipping calculated at checkout.

These Plastic Round Diffusers are a great looking style of ceiling vent which are popular with ducted heating and cooling systems. They have excellent performance characteristics - with low resistance, excellent throw and low noise.

The diffuser is made of durable ABS polymer with UV treatment.

The clips system make installation a simple easy process. Duct simply connects to the neck at the top.

The cone in the middle can be adjusted to increase or reduce air flow by spinning the screw up and down. It can even be fully closed to shut off the diffuser from drafts or heat loss.


The size of diffuser is referent to air duct diameter of your ventilation system. For example, if your air duct size is 250mm diameter, you need to get a 250mm diffuser.

If you want to replace an old diffuser but not sure about the size, please measure the inner neck diameter of your original diffusers, then select the same size.

A ceiling cut out template is provided on the packaging box.


  • Made from high quality ABS polymer
  • UV protected - won't turn yellow with age
  • Easy clips snap-in installation
  • Low air resistance
  • Excellent throw
  • Adjustable airflow


  • 150mm (6")
  • 200mm (8")
  • 250mm (10")
  • 300mm (12")


Bank transfer and all major credit cards through Paypal are accepted. If you are making a bank transfer, please leave your exact eBay username as reference. Otherwise, your payment will not be identified and cleared.

Payment is to be made within 5 days of your commitment to purchase. Otherwise an Unpaid Item Case with be opened automatically.


All items are dispatched from our warehouse in Sydney, Australia.

Shipping fees include postage and handling fees. Postage is calculated based on the weight and size of each product. Combined postage for different products is available manually. Please contact us to combine your shipment before making payment.

We offer free local customer pick-up option from our warehouse. Please contact us for pick-up arrangement if required.

We work with different courier partners to provide reasonable freight costs and quality service. The type of courier used is dependent upon size and weight of each item and the delivery location. If tracking is available for your shipment, tracking numbers will be provided via eBay when your order is dispatched.

We aim to dispatch all products within one working day after your full payment is made. If you need to cancel a purchase after the product has been dispatched, please note that the postage fee may not be refundable. Additional postage fees may apply for re-delivery or re-direction requests.


We accept returns. Please contact our customer service team immediately if:

  • You changed your mind and wish to request a return
  • Your product was damaged during transit
  • You wish to make a warranty claim for any product you have purchase
  • You are not satisfied with any product that you have purchased.

If something goes wrong with your product, please do not hesitate to contact us for assistance. Please note that you must comply with all returns instructions provided to you via your registered email address. All returns must be directed through Customer Service. Please do not return or post items before obtaining instructions from us. If you do, there is a risk that your returned item may not be identifiable and accepted.

If you changed your mind about your purchase and wish to return the product, you must make sure the items to be returned in their original condition, unused and complete with packaging and documentation. We will process the refund upon receiving the returned goods. You will be responsible for return postage and a 10% re-stocking fee will be deducted from your refund. This also applies to orders cancelled while in transit.


If you have any concerns with your order, please contact us immediately via eBay messaging. We will answer your questions within 24 hours and are 100% committed to your satisfaction.

We greatly value your feedback. However if for any reason that you feel we haven't meet your expectations, please contact us to resolve your problem before leaving negative feedback. We will do anything to make sure you having a positive experience with us all the time!