ROSAVE.Z* Depth Cartridge Filters

February 18, 2020 - Nathan Olszak

ROSAVE.Z* Depth Cartridge Filters

For Reverse Osmosis Pretreatment Using Z.Plex* Technology

Figure 1: Z.Plex Filter Technology


ROSave.Z is manufactured using patent pending Z.Plex filter technology (Figure 1) and is engineered for reverse osmosis pretreatment and other pure water applications. ROSave.Zs’ proprietary filter matrix provides unmatched performance in these applications.

  • Up to twice the life of conventional depth filters
  • Up to 50% lower pressure drop
  • Up to 100% greater dirt holding capacity
  • Superior SDI reduction
  • Melt-bonded exterior ensures no media migration
  • Provides lower total cost of filtration operations
  • NSF 42 certified, FDA compliant


Reverse osmosis pretreatment in industries including:

  • Bottled Water
  • Beverage
  • Electronics


Materials of Construction

ROSave.Z filters are made of polypropylene construction. Tables 1 and 2 provide information on dimensions and flow performance.

Table 1: Dimensions

Nominal Outside Diameter Nominal Inside Diameter
2.5″ (6.4 cm) 1″ (2.5 cm)
Table 2: ROSave.Z 1 and 5 micron vs. Conventional 5 micron Flow Performance in Clean Water1

1Data based on 10” length filter

Micron Ratings, Lengths and End Adapters

  • Micron ratings: 1 and 5 micron nominal
  • Standard lengths fit most housings – custom
  • lengths are also available
  • Wide range of end adapters including self-sealing
  • spring, 222 and 226 O-rings, and extended cores.


ROSave.Z cartridge filters are made from thermally bonded fibers of polypropylene. GE certifies that it uses no resin binders, lubricants, antistatic or release agents, in the manufacture of these filter cartridges. The resin used for manufacturing the filter media meet the food contact requirements of the U.S. FDA 21CFR 177.1520. ROSave.Z cartridge filters meet the safety requirements of Article 3 of the EU Framework Regulation No. 1935/2004/EC and may be used as intended in all of the EU Member states in full compliance with the EU Plastics Regulation No. 10/2011. ROSave.Z cartridge filters meet the criteria for USP class VI-121’C Plastics.

GE filter cartridges are designed and manufactured for resistance to a wide range of chemical solutions. Conditions will vary with each application and users should carefully verify chemical compatibility. Please contact your GE representative for more information.

The ROSave.Z element is tested and certified by NSF International against NSF/ANSI Standard 61 for material requirements only.

If you are ordering ROSave.Z filters with standard ends (with no adapter on either end), select one designation from each of the first three columns. Your Product Order Number will look like this: RO.Zs 05-40. If you are ordering ROSave.Zs with end adapters, select designations from all applicable columns. Your Product Order Number will look like this: RO.Zs 05-40 XK.

Type Micron Rating, mm Cartridge Length, Inches (cm) End #1 Adapter End #2 Adapter Material
I.D. – 1.0
O.D. – 2.5
01 = 1
05 = 5
9 ¾ (24.8)
9 7/8 (25.4)
10 (25.4)
19 ½ (49.5)
20 (50.8)
29 ¼ (74.3)
30 (76.2)
40 (101.6
L = Extended Core
E = 222 O-Ring
F = 226 O-Ring
X = Standard ROSave.Zs
plain end (non gasket)
Y = Flat Gasket
K = Self seal spring
H = Fin
S = Solid EndX = Standard ROSave.Zs
(no gasket)
Y = Flat Gasket
S = Silicone
V = Viton2
B = Buna
P = Santoprene
(flat gasket only)


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