Can this product be used in the toilet cistern?

Yes we have used it in the cistern for descaleing. Best with hot water as works quicker but if left overnight it should do the job

Are there instructions in English on the bottle please? I have a clear glass kettle, am hoping it would be suitable for this?

Yes & yes...I have a glass kettle (with blue LEDs) and I descale every month. it still looks pristine & the Kilrock hasn't damaged it at all.

Does it contain muriatic acid?

There’s no Hcl in this , it’s just Formic acid (CH2O2)

Can this be used on plastic shower heads?

Yes use it on the shower head all the time. I put some hot water in a washing up bowl then the same amount of kilcock and soak the shower head.

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Description

⚡ Descale like a pro—because your appliances deserve the best!

MULTI USE MAGIC - One bottle, 12 doses—perfect for kettles, coffee machines, showers & more
ECO FRIENDLY FORMULA - Biodegradable and phosphate-free for guilt-free cleaning
EXTEND APPLIANCE LIFE - Boost efficiency, save energy, and prolong your device’s lifespan
EFFORTLESS APPLICATION - Just pour, wait, rinse—professional results without the hassle
POWERHOUSE PERFORMANCE - Crushes stubborn limescale in minutes for sparkling appliances

Kilrock Mega-K Multi-Purpose Descaler is a powerful, biodegradable liquid formula designed to remove tough limescale from kettles, shower heads, coffee machines, and more. Each 1-litre bottle contains 12 doses, offering an easy, eco-friendly solution that prolongs appliance life and improves performance.

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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.

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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.

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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.

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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.