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20w Quartz Sleeve Product #12982 Price: $30.95 Now Only $27.86 Qty:

For optimal performance, replace the quartz sleeve in your 20w Pondmaster Submersible Ultraviolet (UV) Clarifier when you are unable to clean it completely. A dirty sleeve will block UV light and reduce your clarifier's effective light spectrum. Keep a spare handy and exchange it with a dirty one which can be cleaned later at your convenience. 14.50" L

Also used in the Pondmaster 2000 PUV pressurized filter.