Replacement Parts

When something on the pond quits, it is usually one part, not the whole unit. UV lamps stop killing algae months before they stop glowing. Quartz sleeves scale over. Air pump diaphragms split. O-rings dry out and start to weep.

This is every spare we stock, in one place: Aqua UV lamps, quartz sleeves, seals and transformers, Ultima II gaskets, O-rings, bottom plates and valve handles, Hakko and Alita diaphragm kits, and TetraPond GreenFree bulbs.

Two things worth knowing. A UV lamp is a wear item, not a failure item: replace it once a year even if it still lights up, because UV-C output falls off long before the lamp dies. And parts are model specific, so check the wattage or the part number on your housing before you order. If you cannot find it, send us a photo and we will identify it for you.

A UV lamp, quartz sleeve, rubber diaphragm, two O-rings and a flat gasket laid out on the stone edge of a koi pond, the spare parts that keep pond equipment running.