ULTRATHOR X™ Water-based Termiticide & Insecticide


The ULTRATHOR X difference lies in our exclusive Advanced Flow Micro-suspension Formulation™ that provides improved flow characteristics to better penetrate the soil and create a more complete andcontinuous Termite Defence Zone™.

ULTRATHOR X has been tested and proven to provide improved soil penetration, which has resulted in a class-leading APVMA registered label that allows for rod injection with injection holes approved to be spaced up 350 mm apart in clay soils and 450 mm apart in other soil types.

ULTRATHOR X provides fast elimination of termites and any other insect pests attacking your property together with highly effective, long-term residual termite control. With its unique mode of action, we guarantee that ULTRATHOR will provide proven protection against termite entry for up to 8 years or more. ULTRATHOR X is uniquely labelled to control all species of crawling insect pests.

ULTRATHOR X is non-repellent. This means that insects are totally unaware of its presence around your home. So, they continue their normal activities, totally unaware that it is slowly building up in their bodies, until it reaches a lethal dose. And no more termites or other insects!

ULTRATHOR X is toxic to insects by contact or ingestion. It causes death by disrupting their nervous system. It binds to three types of calcium-channels on the membranes of insect neurons, preventing calcium ion influx into the cell. One of these channels is controlled by the neurotransmitter gamma-aminobutyric acid (GABA) and the other two are controlled by glutamate. The presence of three different target sites accounts for ULTRATHOR’s high potency.

ULTRATHOR X displays selective activity due, in part, to the fact that glutamate-mediated chloride channels are unique to invertebrates, like insects and termites. Also, fipronil binds more tightly to the GABA controlled chloride channel of insects than to that of mammals or birds. This increases the margin of safety for people, pets and other animals. Fipronil is also non-toxic to earthworms.

ULTRATHOR X adsorbs tightly to soil, has low solubility in water, and a low vapour pressure; as do its environmental degradates. Low application rates, combined with the unique ULTRATHOR formulation also reduces the risk of run-off.

Product Details

Active Ingredients:


Insecticide Group:

Fipronil is a broad spectrum phenylpyrazole insecticide 

Formulation Type:

Water based termidicide and insecticide

Pests Controlled:

Subterranean termites, various insect pests

Pack Size / Code:

1 L (CHEUL1000)
3 L (CHEUL1017)

Resistance Group:

Group 2B insecticide

For more information:

Homeowners Brochure

AQIS Approval


Usage Leaflet

3 L

1 L 

SDS - Australia


1 L

SDS - New Zealand