Millipore is very descriptive here:

ZF3000004 ZF3000004

ZF3000004
1  
USD 1,010.00
Stocked











Overview

Description
Catalogue NumberZF3000004
DescriptionZF3000004
Product Information
Packaging Information
Material Size1

Replacement UV lamp Ballast for ZF3000004 (1/pk)

For MilliQ water purification systems

Emd Millipore Corporation UV LAMP BALLAST COMPLETE

Manufacturer:  Emd Millipore Corporation ZF3000004

UV LAMP BALLAST COMPLETE