Watts (A7007A) Media Gravel, 1/2” inch x 1/4” inch GRIT #4 Sensafe (480015) 5-Way 5in1 WaterWorks Test for Water Quality Testing Mazzei differential pressure venturi

Mazzei differential pressure venturi

Dual-action design also captures sediment down to 5 microns

Unscrew the 20" Big Blue housing sump

verify electrical connections and system pressure ratings

5 sizing fits existing whole-house filter housings

Watts (A7007A) Media Gravel, 1/2” inch x 1/4” inch GRIT #4 Sensafe (480015) 5-Way 5in1 WaterWorks Test for Water Quality Testing Mazzei differential pressure venturiWatts A7007A Filter Media Watts Media Gravel, 1 2" x 1 4" Precision graded support media for point of entry filtration systems. The foundation layer that prevents media migration and ensures even flow distribution. 1 2" x 1 4" Grade Base Support Layer POE Systems WHY IT WORKS The Foundation of Effective Filtration Precision Grading Each piece sized between 1 2" and 1 4" to create optimal void space for water distribution without allowing finer media