Puritech Ultraflow-W, the Retrofit of Watts Bigbubba Filter Cartridges

Puritech Ultraflow-W High Flow Filter Cartridge delivers consistent filtration of fluids in a wide range of applications. Polypropylene/Polyester construction provides excellent chemical resistance to bases, acids, salts and many organic solvents in a broad range of processes. Different manufacturing process provide larger filtration area and longer service life.

Features and Benefits:

  • Polypropylene/Polyester construction provides excellent chemical compatibility with a variety of process fluids and applications
  • Graded pore construction provides optimum particle retention and prevents media migration, ensures consistent filtration performance
  • Low pressure differential, high dirt holding capacity and long service life


Melt blown / Pleated depth membrane


  • Filter Medium: Polypropylene/Polyester
  • End Cap: ABS
  • Sealing: Silicon, EPDM, NBR


  • Outer Diameter: 6.38’’ (162 mm)
  • Media Length: 26-1/4” (667mm)
  • Micron Rating: 1μm, 3μm, 5μm, 10μm, 15μm, 20μm, 30μm, 50μm, 70μm

Recommended operation condition:

  • Maximum Operating Temperature: 80℃
  • Maximum Operating Pressure: 4.1bar at 30℃
  • Recommended Change-Out Differential Pressure: 2.4bar

Typical Application:

  • RO Pre-Pretreatment
  • Food and Beverage Processing
  • Municipal & Potable Water Systems