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Universal Multi-Cartridge Housings 7FOS

Our seven round models are designed for flow rates to 200 GPM. “Universal” multi-cartridge housings accept DOE, 222 fin or flat cartridges. Options include 304L or 316L stainless steel with a band clamp, or swing bolt closure. Designed to operate at 150psi (10bar) @ 300ºF (149ºC) for all industrial and commercial filtration needs. ISC has a wide variety of cartridge filter vessels designed rugged for your specific application.

These cartridge filter housings are equipped with standard inlet and outlet connections are 2” MNPT, but many other options available by special order. Standard finish is poly-coat over stainless. All seven round models are standard with mounting legs. Standard gasket is FDA grade Buna-N. Request a quote online or call to have a filtration specialist tell you more about our multi-cartridge liquid filtration vessels.

DownloadMulti-Cartridge Housings – 7FOS Brochure7-Multi-Cartridge-Housings


  • Band clamp and swing-bolt closures for quick cartridge change outs
  • Pipe fittings readily accessible for easy installation
  • Mounting legs standard
  • Knife edge seal at both cartridge ends to eliminate by-pass
  • Standard housings accept double-open-end cartridges and 222/Flat or Fin
  • Available with 226 cartridge adapters
  • Complete selection of pipe fittings: flanged, sanitary, BSP, grooved and others
  • See ordering guide for complete list of options

Compatible Filters

String Wound Filter Cartridges - Melt Blown Depth Cartridges - ME Series Pleated Cartridges
High Efficiency Pleated Cartridges - Carbon Filter Cartridges - Stainless Steel Cartridges


Maximum Operating Pressure150 psig (10.3 bar) @ 300°F (149°C)
ConnectionsInlet /Outlet: 2" MNPT
Drain Ports: 1/2" FNPT
Vent Ports: 1/4" FNPT
Optional: MNPT, FNPT and BSP fittings, RF flanges, Sanitary ferrules and Grooved fittings
Materials of ConstructionHead and Shell: 304L or 316L Stainless Steel
Connections: 304L or 316L Stainless Steel
Closure: Clamp: 304L Stainless steel; Swing Bolts: Zinc Plated Steel
Vent and Drain Plugs: 304L or 316L Stainless Steel
Mounting Legs: 304L Stainless Steel
GasketsBuna N (FDA Grade)
Optional: EPR, Silicone, Viton or Teflon Encapsulated Silicone
FinishPoly-coat on exterior surfaces
Optional: Electro-polish, Glass bead or Passivate
Cartridge TypeDOE or 222 cartridges (maximum 2 3/4" OD)
Optional: 226 adapters
Custom Options- Gauge Ports or Gauge Ports with Pressure Gauges
- Heavy Duty Mounting Legs

Ordering Guide (Example: 7FOS3-C-316-226-2MNPT-ML-B)

ModelCartridge LengthClosure StyleMaterialCartridge ConfigurationConnection SizeConnection TypeOptionsGasket
7FOS1 = 1 High
2 = 2 High
3 = 3 High
4 = 4 High
C = Clamp
SB = Swing Bolt
304 = 304L
316 = 316L
Blank = Universal Pedestal for DOE
and 222 Fin/Flat Style Cartridges (Standard)
226 = 226 Fin/Flat Style Cartridge
MNPT = Male Pipe Thread (standard)
FMPT = Female Couplings
BSPT = BSP Tapered*
BSPP = BSP Parallel*
F = Flange
TC = Ferrules
GF = Grooved Fittings
ML = Mounting Legs (standard)
OL = Heavy Duty Legs
GP = Gauge Ports
GPA = Gauge ports with Gauges
EP = Electropolished
GB = Glass Bead
P = Passivate
B = Buna N (standard)
S = Silicone
V = Viton
TS = Teflon Encapsulated Silicone

How can we help you?

Call (877) 602-0010 to skip the wait!

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