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Free shipping Over £50
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30 days return
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Secure checkout
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Over 1000 Happy Customers
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Express Delivery Available

This extremely accurate thermostat will maintain the water's temperature within +/-0.1°C when operating in the 0–30°C range.
The device has an automatic temperature gradient control that prevents fish from experiencing temperature shock when settings are changed.
Outdoor use is approved for IP68.
includes a 3m submersible probe by default.
Is delivery free?
We offer free delivery on the majority of our products over £50. This excludes live fish and bespoke filters. Delivery to UK mainland addresses is £3.95 as standard, or £6.95 for express.
How do I return a product?
Get in touch via email or phone and let us know your problem, we will then help as much as possible. A postage address will be given for you to return the product back to us, and postage will be refunded where applicable to our terms and conditions, which are in line with consumer rights.
At Steel City Koi, we offer a wide range of safe and secure payment options when shopping with us.
Accepted payment methods:
Debit/Credit Cards (Inc American Express)
BACS (for faster dispatch of products) please get in touch for this
Cash upon collection *only for live fish
Pay Later options currently include Klarna and Clearpay
Safe and Secure Checkout