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Ecoline 25-300

Codeline Ecoline 25-300 is membrane housing  series of 2.5” diameter with end entry design. This is used for commercial RO applications in operating pressure of 300 PSI. These are made up of epoxy/ glass composite to meet the demands of long term and continuous use. Codeline 25-300 can accommodate any standard make of 2.5” nominal diameter spiral-wound membrane element.


Pentair Codeline - High gloss exterior paint Pentair Codeline - Metallic locking segment Pentair Codeline - One piece head thermoplastic
High gloss exterior paint
Metallic locking segment
One Piece Engg thermoplastic head


  • Head assembly made of engineering thermoplastics for high strengths and superior chemical resistance
  • Corrosion resistant superior quality with improved system performance
  • Integrally formed locking  grooves provide better locking strength
  • Mirror finish ID for easy and quick loading and unloading of membranes
  • Exteriors coated with high gloss polyurethane paint for UV resistance
  • Head seal area is formed by mandrel surface, hence this is more accurate
  • Compact design for use in compact and low energy water treatment units

Unique benefits

The 25-300 membrane housing has 5 unique benefits

  • Compact design for use in compact and low-energy water treatment units
  • Head assembly made of high-grade thermoplastics for high strength and superior chemical resistance

  • Improved head sealing: Integration into the end plug provides better sealing and avoids head seal roll
  • Integrally wound locking groove: enhanced end-margin strength for better performance
  • Advanced end closure

Parts overview


The membrane housing of the Ecoline 25-300 is shown in the exploded view below. The parts table contains an explanation of the numbers. Clicking on the enlargement opens a PDF file containing both the exploded view and the parts table.

Pentair Codeline - Exploded view of the Ecoline 25-300


Pentair Codeline - Exploded view and parts table


Ecoline 25-300

Drawing no.
Design/ Max. operating pressure
300 PSI/20 Bar
Max. operating temperature
120°F/ 49°C
Min. operating temperature
20°F/- 7°C
Qualification pressure
1200 PSI/82 Bar
Element length
14” (One), 21” (One) , 40” (One)
Download datasheet
Datasheet Codeline Ecoline 25-300
Download drawing
Codeline drawing 25-300

Quality: read more about our quality certificates.
Multiporting: learn more about multiporting with Codeline pressure vessels.
Older products: click here for more information about older Codeline products.
User Guides: click here for all the Codeline User Guides.

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