High Output UV Light System Replacement Bulb Size:VH410 These handheld refractometers are small

These handheld refractometers are small

Advanced Nutrients® Flawless Finish®

Universal Control Systems Compatibility: Photontek Pro LED Fixtures can be fully controlled with the Photontek Digital Controller that features light timing

This filter for your vacuum pump will adsorb contaminants such as oil aerosols

either regular Liquid Ladybug™for plants in bloom or Liquid Ladybug V™for any plant not in bloom

High Output UV Light System Replacement Bulb Size:VH410 These handheld refractometers are smallReplacement for Viqua VH200 and VH410 high output UV light bulbs. 2 o rings are included with each replacement bulb. Please refer to the specification sheet and manual for included parts, installation, and proper water chemistry requirements.