CureUV Brand UVC Bulb for iSpring Home Water Systems UVB11 UVL374 It's important to note that

It's important to note that while the light may still be visible after 12 months of operation

HEPA filter: HEPA stands for High Efficiency Particulate Air and it is essentially the only true standard in air filtration products

Grinding: Yes

Emperor Aquatics - Smart UV 18 Watt Light Bulb is 17 watts and 100% compatible with germicidal OEM Water sterilization filters

CureUV Brand UVC Bulb for iSpring Home Water Systems UVB11 UVL374 It's important to note thatGuaranteed Replacement Ultraviolet (UV) Bulb Medium Bi pin (2 Pin), Double Ends G13 Base 11 Watts 8. 9 Inch Length Lamp Hot Cathode Worry Free Performance for 1 Year Our CureUV brand Replacement UVC Light Bulb for iSpring Home Water Systems UVB11 is an 11 watt bulb compatible with germicidal OEM Water sterilization filters, UV sanitizers, and water purifiers. This lamp effectively deactivates and eliminates bacteria, molds, protozoa, viruses, and