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Greens Horticulture - Serving Growers All Over The UK


Regular price £17.06 £18.95 | Save £1.89 (9% off)
Tax included. Shipping calculated at checkout.
In Stock
SKU: 2571
Spend £50.00 more for free delivery (shipping surcharges still apply)


Fresh Linen / 1l - £17.06
  • Fresh Linen / 1l - £17.06
  • Polar Crystal / 1l - £17.06
  • Apple Crumble / 1l - £17.06
  • Lemongrass / 1l - £17.06
  • Pro / 1l - £17.06
  • Fresh Linen / 4l
  • Polar Crystal / 4l
  • Apple Crumble / 4l
  • Lemongrass / 4l
  • Pro / 4l - £40.46
  • Fresh Linen / 20l
  • Polar Crystal / 20l
  • Apple Crumble / 20l
  • Lemongrass / 20l
  • Pro / 20l - £125.96



As the name suggests, Odour Neutralising Agent (ONA) Gel is a great way of combating unwanted smells. Available as either gel or block and in a choice of fragrances, ONA has a wide variety of applications and places where it can be used.

Ona Gel is a low-cost way of managing smells and can also be used by drilling a few holes in the lid to extend its lifespan. Some people have also found that by breaking it out of the pot it is possible to smear it inside ductwork and boost the effects of a carbon filter.

The gel can also be used by placing small amounts in various places to maximise the surface area and avoid the crust that can form at the top of an open jar. It can also be incorporated into ducting by using a T-Piece and, if needed, a ducting reducer (the one litre gels are nearly a perfect fit for a four-inch/100mm reducer).

Estimating the lifespan of the ONAs is hard as much will depend on airflow, humidity, and temperature, but an average would be four to six weeks for the ONA Gel 1L.



Delivery Information

Most orders are shipped within 24 hours.

Orders are currently shipped with Parcelforce (Express 24 service for standard and heavy/bulky items) or DPD Local (Premium next-day), a signature will be required on delivery. We have been shipping orders for 15 years and our courier choices are subject to change as service levels fluctuate.

All orders are shipped on a next day courier service – you will be informed via email or SMS the evening your order leaves us so you know to expect it the next day. On the morning of delivery you will get another SMS or email informing you of the expected delivery time.

If you have any questions on delivery please get in touch.

As the website calculates some charges by weight it is possible that shipping is not calculated correctly. We reserve the right to get in touch in these circumstances we will request the additional amount or offer to refund the order.

UK Delivery

Standard delivery to the UK Mainland addresses (excluding Scottish Highlands & Islands, offshore and N.I.) is charged at a flat rate of just £5.95 per order or £7.95 (for the premium next-day service), standard delivery (with Parcelforce) is free* for orders over £50.

*Large and/or heavy items attact a surcharge from our courier - shipping surcharges are calculated per item and are applied regardless of order value.

Non-UK mainland destinations are charged by weight.

International Delivery

Coming soon…

Collect in Store (Bristol)

We now offer a 'collect in store' option, which allows you to pay for goods online and collect from our Bristol store at time that suits you (within our opening hours).

The process is simple:

  1. place your order and pay online, select 'Pick Up' at checkout;
  2. receive an email confirming that the order is ready for collection;
  3. bring/show your confirmation email and photo ID to collect your order.


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