Description
Evolution Aqua Quartz Sleeves
The Evolution Aqua Quartz Sleeve insulates the lamp from the water, allowing the lamp to operate at the optimum performance. The ultraviolet lamp will remain independent of the flow of water. Evolution Aqua Quartz Sleeves are of open-ended construction and are made from pure fused quartz. Quartz is extremely transparent over a wide spectral range, with a low coefficient of thermal expansion and quartz is resistant to scratching and thermal shock. Fused quartz is made from crushing and melting natural materials. The purity of quartz is paramount to the efficiency of the lamp and sleeve. For those Koi and pond enthusiasts who are not as careful as they might be, we do also sell the spare Evolution Aqua Quartz Sleeves in the most standard sizes.
Evolution Aqua Quartz Sleeve Benefits:
- Greater ultraviolet transmission
- Low coefficient of thermal expansion
- Increased hardness and resistance to scratching
- Higher resistance to solarisation or darkening from ultraviolet radiation
Evolution Aqua Quartz Sleeve Dimensions:
15w/25w
- Overall length 415mm
- External diameter 30mm
- Internal diameter 27mm
30w/55w
- Overall length 870mm
- External diameter 30mm
- Internal diameter 27mm
75w
- Overall length 1175mm
- External diameter 30mm
- Internal diameter 27mm
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Shipping Rules
We have several different ways of shipping available on our website for you to select when you go through to checkout
- We use Evri for our Economy Service this can take between 2 and 5 days. This service starts from £4.90. Evri collect from us on a Monday and Thursday which is a Tuesday and Friday delivery to you
- We use DPD and DX for our premium/standard service which is a next working day delivery this service price starts from £7.95. This is collected from us Monday through to Friday, We cannot Guarantee it will be a next day as it is courier dependant
- We use Dx Freight for our standard large service for things like pipe lengths and larger items This service is £19.95. This is on a next working day delivery and is Monday through to Friday.
- We use APC for our Fish delivery service this service is £35. This is an overnight service. Koi will be scheduled to arrive between 8.00am – 12:00 midday. You also MUST be in to sign for the koi. Delivery days are Wednesday, Thursday & now Fridays and will always be pre arranged with you
- Some larger items and bespoke items are dropped shipped to speed up delivery
- We also ship from our suppliers this is to speed up delivery
- We also offer Free Delivery on orders over £100 excluding lengths of pipe and live fish
- Live fish are sent with APC and have a price of £35.00. More than 1 Koi can fit in a box
- All our shipping companies do give us tracking information that you should receive by email this includes any orders we drop ship.
Colin (verified owner) –
Neil M. (verified owner) –
The product is what it is but it was packaged with care and arrived in good order
Paul A. (verified owner) –
Fast delivery came when said it would fair price
Beth H. (verified owner) –
Exactly what we needed, came really quickly and very well packaged. In our opinion Cotswold koi is the go to if you need anything for your pond, we have never been disappointed.
James Hartley (verified owner) –
I was a little worried with it being a quart glass cylinder the tip might break, but I need ant of worried it came in extremely good packaging.
That’s five stars from me 🌟🌟🌟🌟🌟🤓👍.
John (verified owner) –
Were delivered intact and promptly
Anonymous (verified owner) –
The team at Cotswold Koi were super helpful and provided me with superb products. Thank you very much.