Quatro F191S Jet-Stream HEPA Filter Ohaus Available in three kit sizes:

Available in three kit sizes: ½ pint

0X protective lens to protect optics when an auxiliary lens is not installed

Mount included for optional thermometer for independent temperature verification

5 is a precision hand tool designed for professional jewelers and watchmakers requiring reliable

Quatro F191S Jet-Stream HEPA Filter Ohaus Available in three kit sizes:The Quatro F191S is the current HEPA filter designed for use with the Quatro Jet Stream unit (model 1 0020 0102). This filter serves as the direct replacement for the earlier Quatro F160 and Quatro F190 filters used on previous Quatro models, making it the correct upgrade choice for shops transitioning from older units or replacing a worn filter on a current Jet Stream system. Features HEPA filtration for the Quatro Jet Stream (model 1 0020 0102)