Available in these popular scents:

• Fresh Linen
• Fruit Fusion (NEW)
• Tropics
• Apple Crumble
• Pro
• Polar Crystal

Choose from: 400g, 732g, 3.8kg 

ONA - Odour Neutralising Agent - No:1 in Hydroponic Odour Control

The ONA Gel is our most popular product. ONA spent many years  developing a blend of liquid & various suspension elements to result in a  product that has excellent dispersion qualities. The ONA odour neutralising  agents are released in a controlled manner so that every drop of this excellent  product is fully optimised.

ONA Gel is ideal  for longer term deodorising of closed spaces.

Can be used with ONA Fan for greater effect.