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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

With a temperature of above 900C, Crystal Bio is a special, environmentally friendly filter-media that produces a hyperconnecting glass cell structure. This results in media that have a surface area that is at least ten times larger than typical plastic substitutes. Furthermore, Crystal Bio weighs only 15 kg for 100 litres, which is incredibly light compared to other porous filter media! Above the filter media, the Shower Filter can alternatively be ordered with a built-in 300 micron stainless steel sieve. The 50-litre Crystal Bio media is included with this version of the Shower Filter.
A 90mm sieve waste outlet is also included in the PE housing.
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