This Mortein Fast Knockdown Spray comes in a large, 300 g spray bottle making it easy to direct and use. This spray is fast acting, eliminating bugs and insects almost instantly. There is 300 g in this spray. It's a multi-purpose spray that can be used to kill and remove insects. The handy spray nozzle makes the aerosol easy to direct and use.
This Mortein Fast Knockdown Spray comes in a large, 300 g spray bottle making it easy to direct and use. This spray is fast acting, eliminating bugs and insects almost instantly. There is 300 g in this spray. It's a multi-purpose spray that can be used to kill and remove insects. The handy spray nozzle makes the aerosol easy to direct and use.
in 4 offers
The lowest price for Mortein Fast Knockdown Aerosol Multi Insect Killer 300g right now is $21.95, compared across 4 retailers.
Mortein Fast Knockdown Aerosol Multi Insect Killer 300g
This Mortein Fast Knockdown Spray comes in a large, 300 g spray bottle making it easy to direct and use. This spray is fast acting, eliminating bugs and insects almost instantly. There is 300 g in this spray. It's a multi-purpose spray that can be used to kill and remove insects. The handy spray nozzle makes the aerosol easy to direct and use.
This Mortein Fast Knockdown Spray comes in a large, 300 g spray bottle making it easy to direct and use. This spray is fast acting, eliminating bugs and insects almost instantly. There is 300 g in this spray. It's a multi-purpose spray that can be used to kill and remove insects. The handy spray nozzle makes the aerosol easy to direct and use.
The all-time low was $11.34 on 15 Mar 2024 — today's price is 94% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 11 Sept 2026.
Last updated at 11/09/2026 04:17:04
Mortein Fast Knock Down Multi Insect Killer Spray 300 g (Pack of 9)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mortein Multi Insect Killer Spray 2 X 300g Value Pack
Delivery $9.95
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mortein 8157111 Fast Knockdown Multi Insect Killer Aerosol 9 x 200g
Mortein Fast Knockdown Multi Insect Killer Spray 300G X 9
Delivery between 15–24 Sept $16.50
originally posted on woolworths.com.au
[This review was collected as part of a promotion. ] The spray is broad so it can kill many insects at a time. Only 1 thing that i dislike is the smell quite strong for me I tried on flying flies i works well at 1 full spray Good product!
originally posted on woolworths.com.au
[This review was collected as part of a promotion. ] As soon as i got this i had to use it unfortunately, a cockroach scurried right by and i got him! Works so well! He fell down right away! Good stuff.
originally posted on woolworths.com.au
[This review was collected as part of a promotion. ] Very efficient insect killer, would definitely recommend if lots of different insects show up at your home. Worked best with annoying spiders on the ceiling.
Mortein Fast Knock Down Multi Insect Killer Spray 300 g (Pack of 9)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mortein Multi Insect Killer Spray 2 X 300g Value Pack
Delivery $9.95
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mortein 8157111 Fast Knockdown Multi Insect Killer Aerosol 9 x 200g
Mortein Fast Knockdown Multi Insect Killer Spray 300G X 9
Delivery between 15–24 Sept $16.50
[This review was collected as part of a promotion. ] The spray is broad so it can kill many insects at a time. Only 1 thing that i dislike is the smell quite strong for me I tried on flying flies i works well at 1 full spray Good product!
[This review was collected as part of a promotion. ] As soon as i got this i had to use it unfortunately, a cockroach scurried right by and i got him! Works so well! He fell down right away! Good stuff.
[This review was collected as part of a promotion. ] Very efficient insect killer, would definitely recommend if lots of different insects show up at your home. Worked best with annoying spiders on the ceiling.
[This review was collected as part of a promotion. ] Unfortunately for the bugs, this really works! Kills fast. We've had lots of people over lately with the back doors open-this has resulted in bugs coming in. They just don't survive long! It doesn't repel them but it kills them
[This review was collected as part of a promotion. ] This product worked great to kill multiple insects as claimed! The size of the spray bottle means it should last us a long time. It smelt great, but be careful to not spray it on floors, as it can be quite slippery! However, a quick wipe over with a baby wipe fixed the left over reside! I would highly recommend this product!
[This review was collected as part of a promotion. ] I’ll readily admit that I have a phobia of crawling insects, flying insects, spiders- basically any animal that enters my home and backyard without being invited I have a real fear of wasps, and it’s an issue we struggle with multiple times a year, with different nests appearing in our yard. A good insect spray is absolutely essential for us, and this one is the best! It has a great range and power, so you don’t need to get too close, and kills them within a spray or two.
[This review was collected as part of a promotion. ] In Australia, we see a lot of flies, and spiders during summer and Mortein helps me get rid of it all. It works wonders and the fragrance is good.
[This review was collected as part of a promotion. ] I personally find mortein products to work the best out of all of the different brands. Its very effective and works fast too.
[This review was collected as part of a promotion. ] Unlike other products this spray doesn’t have a strong smell which is really pleasant when you need to spray. I used it outside under our furniture to ward away bugs and insects. It works perfectly and the spray is powerful and gets the job done
[This review was collected as part of a promotion. ] A bit pricey but works significantly better than cheaper options. Good power to the spray so you don’t have to get super close to the bug. Was able to send a wasp to the ground in one good spray
