while still enabling all of your maintenance and housekeeping workers to open the unit to replenish supplies

No more guesswork about Drain Seal effectivness - quickly see if spills are entering the drain through cracks in the surface

The support posts included in the unit are made with zamak that is finished with chrome electroplating to allow it to match the rest of the dispenser

Valve Sub Ass'Y

Watts Backflow Preventer Repair Kit, For Use With Mfr. No. 4 909 NRS - RK909RT4 Diameter-1" while still enabling all ofBackflow Preventer Repair Kit; For Use With: Mfr. No. 4 909 NRS; Includes: Check Disc, Cover And Sleeve O Ring, Diaphragm, Piston Seal And Lubricant, RV Disc Assembly, Upper And Lower Check Stem O Ring