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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

A 316 Stainless Steel housing with 360° rotational flexibility for the inlet and outlet unions is one of the unique features.
The presence of unions at either end of the stainless steel housing, which enables complete disassembly of the stainless steel housing to assist cleaning of the quartz tube should it be necessary, is another important exclusive feature that is not frequently encountered in similar units.
Delta's patented High Output (HO) low pressure lamp, like all Delta Ultraviolet systems, has a maximum output of 30,000 microwatts (25,000 output at lamp end-of-life) when design flow rates are maintained.
13000 hours of continuous use are the long life lamp's rating.
a maximum of 3 bars.
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
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