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PetcoWater flows in direct contact with UV lamp, making it extremely efficient. The zigzag flow are designed for maximum sterilizing time. Totally self-contained replacement bulb assembly for AA 9Watt UV Sterilizer Kit. .... 2.8" L x 2.5" W x 16.5" H
The Norland collection of long-wave, ultraviolet light sources have been carefully ...LED UV Curing System emits a consistent and repeatable 2.5 W/cm squared ... lack of liquid light guides and replacement lamps brings to the forefront of UV ...
obtain proper replacement bulb
shut down entire filter for a moment before unscrewing the top locking ring off Uv filter (left turn) lift top off set asside
using a soft clean rag retract uv tube from its cylinder holder inside , remove power connector from tube end (you should have already removed all power from converter box) with extremely clean rag handle new tube ( allow no forign material to touch outside of tube ) reinsert power connector onto new tube (same way it came off old one) then reinsert tube into holder sleeve , route power cord to proper places away from lid , replace lid and install lock ring back with enough force to ensure a leak proof seal , re start pump ck for leaks if none found then restart power converter for Uv filter
The picture is a classic, with no UV light. Still works great. It got my kids off their inhalers after 15 years of 4 per month. Now 4 per year. A Fresh Air, depending on the age, has a light attached in the bottom of the visible base behind a cage and plate, and the new honeycomb units have the light inside the honeycomb.
UV bulbs, or rather the RCI cell needs to be changed every three years in the FreshAir, or when the "Replace RCI cell" appears, whichever comes first. The UV bulb loses its intensity over this period of time.