Dichroic Coated Curved UV Quartz for IST S1/420 System - 602mm x 48mm UVH-1322 1 unit in each room

1 unit in each room is probably enough but if you have a noticeable infestation

IP65 rated - waterproof and dustproof

All Carrier brand names

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Dichroic Coated Curved UV Quartz for IST S1/420 System - 602mm x 48mm UVH-1322 1 unit in each roomGuaranteed 100% Compatible Dichroic Coated Curved UV Quartz Cold Mirror Single piece 602mm x 48mm for IST S1 420 System The IST S1 Specialty Coated Curved UV Quartz 602mm X 48mm is a UV quartz cold mirror that exceeds OEM standards of UV curing performance. The quartz cold mirror is completely compatible to the dichroic quartz and works well for the IST UV systems. The CureUV cold mirrors help in reflecting UV energy and removes heat producing visible