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

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

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

SAR 34

Duties & taxes included

In stock

Sold byAmazon KSADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

Desertcart purchases this item on your behalf and handles shipping, customs, and support to KSA.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

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

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

SAR 34

Duties & taxes included

In stock

Sold byAmazon KSADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

Desertcart purchases this item on your behalf and handles shipping, customs, and support to KSA.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews