Kockney Koi Yamitsu Quartz Sleeve 11 watt

For those Koi and pond enthusiasts who are not as careful at they might be, we do also sell the spare Yamitsu Quartz Sleeves in the most standard sizes.The Yamitsu 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. Yamitsu 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 form crushing and melting natural materials. The purity of quartz is paramount to the efficiency of the lamp and sleeve.Yamitsu Quartz SleevesGreater ultraviolet transmissionLow coefficient of thermal expansionIncreased hardness and resistance to scratchingHigher resistance to solarisation or darkening from ultraviolet radiationQuartz sleeves are available for the Yamitsu Algae Master Pond UV Clarifier 6, 8, 11, 15, 25, 30 and 55 watt units.