The Green Killing Machine 24W UV Steriliser helps improve water clarity in freshwater and marine aquariums by reducing harmful microorganisms and free-floating algae. This submersible unit includes an integrated power head and features simple 1-2-3 installation with suction cup mounting—no external pipes or hardware required.

Key Features:

• 24W UV steriliser with built-in power head
• Submersible design for easy placement
• LED indicator shows when bulb replacement is needed
• Quick setup with suction cups – no plumbing or tools
• Suitable for both freshwater and marine aquariums

This unit is used and shows signs of algae; it comes with the original box. Fully functional and ideal for aquarists looking for affordable UV filtration to support clearer, healthier water.

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.