Mountain Tree Air Ring 50cm

A perfect equipment to increase the dissolved oxygen for your pond – Mountain Tree Air Diffusor. Smooth industrial design to eliminate sharp edges, ensure it is no damage to fish.

304 stainless steel base + pure copper air nozzle or plastic air nozzle, not easy to get rusted. Its weight makes it will not float and easy to use with a large flow air pump.

304 Stainless Steel base and pure copper nozzle
Heavy weight to make sure it sinks on the bottom
Rounded edge design to ensure the safety of fishes
Environmental friendly rubber
Made of imported eco-friendly rubber from Japan
The rubber ring is made of eco-friendly rubber imported from Japan, which has a longer lifetime than regular product.

Irregular pores on rubber
Thanks to the irregular pores on rubber, the water contains more dissolved oxygen and fishes are happier and more lively!

Customizable nozzle
The air nozzle can be customized to pure copper or plastic according to your needs.

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