TMC Quartz Sleeves fit the TMC Pond Clear and TMC Pro Clear range of UV's. These top quality spare sleeves will protect the UV lamp and prolong the life of the whole unit. Water is kept out of the delicate workings of the lamp, yet the light can still permeate the water, removing the risk of algae.
We would suggest replacing the o-rings at the same time as the quartz sleeve. The o-rings are sold as singles so you will need to purchase 2 per quartz sleeve.