I really want to use in my sealed garden nursery with 650 plants that I grow and sell. Will this kill or harm them, slow plant growth in any way? 🙏Xx

Thank you for your query. This product is the refill for ZER740 Knockdown Mosquito Killer. This product will just deter/killing flying insects on contact. It will not harm the plants in your nursery. Please ensure no plants are directly positioned in front of the plug in unit however. Please do not hesitate to contact us with any further queries.

Can it be plugged into a uk shaver socket?

Thank you for your query. If you have an adaptor plug to enable the 3 pin pug on the repeller, and have checked the voltage of the shaver socket compared to the product, this will be fine to use in a UK shaver socket. However, we wouldn't advise you do this as the product will not work very well in a damp room or a room with steam or high moisture. It is best used in a room such as living room, or bedroom, or caravan. Please do not hesitate to contact us with any further queries.

Does this fit a boots repel diffuser?

Thank you for your query. Unfortunately we cannot comment on other brands which aren't STV products, This is made for the ZER740 Knockdown mosquito killer. Thank you

Has anyone found these helpful against carpet/clothes moths

Not sure if they work for those insects however we are currently vacuuming everyday to remove the multiple, a lot, mosquitoes it kills off

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Knockdown Mosquito Killer Refill

Product ID: 164518107

Details

Item form
Liquid
Item weight
0.05 Kilograms
Liquid volume
30 Millilitres
Brand
Zero In
Target species
Insects

⏳Up to 45 nights of continuous protection

🌿Odour-free, fragrance-sensitive friendly

🦟Kills mosquitoes & biting insects instantly

€ 10.50

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🛡️ Defend your space, ditch the buzz—mosquito-free nights guaranteed!

ODOUR FREE COMFORT - No unpleasant smells—perfect for fragrance-sensitive homes and professional spaces.
LONG LASTING DEFENSE - Enjoy up to 45 nights of 8-hour protection per 30ml refill—fewer replacements, more peace of mind.
INSTANT KNOCKDOWN POWER - Targets mosquitoes, midges & biting insects on contact for immediate relief.
ECO CONSCIOUS FAMILY SAFE - Ethical pest control with minimal environmental impact, caring for your home and planet.
EFFORTLESS PLUG IN CONVENIENCE - Simply swap the refill in your existing Zero In unit for seamless, continuous protection.

The Zero In Knockdown Plug-In Mosquito Killer Refill is a 30ml odour-free insecticide refill designed for use with the Zero In plug-in unit. It delivers fast-acting, contact kill of mosquitoes, midges, and biting insects, covering up to 12m². Each refill provides up to 45 nights of continuous 8-hour protection, combining effective pest control with a fragrance-free formula ideal for sensitive environments. Easy to replace and eco-conscious, it offers a hassle-free, long-lasting solution for maintaining a comfortable, insect-free home or travel space.

Specifications

ASIN	B07DQZXYQP
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	256 in Garden ( See Top 100 in Garden ) 9 in Mosquito Control
Colour	Transparent
Customer Reviews	4.2 4.2 out of 5 stars (807)
Date First Available	19 Dec. 2017
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Guaranteed software updates until	unknown
Included Components	KNOCKDOWN MOSQUITO REFILL ZER742
Item Package Quantity	1
Item Weight	50 g
Item model number	ZER742
Manufacturer	STV International
Part Number	ZER742
Power Source	No Power
Product Dimensions	4.5 x 4.5 x 7.4 cm; 50 g
Style	PESTICIDE

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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