Amazon Filters DuoLine polypropylene needlefelt filter bags are disposable industrial filter bags designed for effective surface and depth filtration across a wide range of liquid filtration applications. Manufactured from polypropylene needlefelt media, they are available in micron ratings from 1 to 200 micron and in multiple bag lengths and diameters.
DuoLine bags filter from the inside out, retaining contamination inside the bag for straightforward removal and disposal. Polypropylene versions are suitable for applications including water treatment, membrane protection, resin trapping, potable water, chemical processing, metal finishing and general process filtration.
Key Features
- Polypropylene needlefelt filter media
- Micron ratings: 1, 5, 10, 25, 50, 100 and 200 micron
- Surface and depth filtration for high dirt-holding capacity
- Available in 4.25", 5.50" and 7.00" ring diameters
- Multiple nominal bag lengths available
- Choice of zinc plated ring with loops, stainless steel ring with loops, polypropylene moulded sealing flange, or PE ring depending on bag size
- Maximum operating temperature for 19PP: 95°C
- Recommended maximum differential pressure: 4 bar; Amazon Filters recommends normal bag change at 2.5 bar differential pressure
- FDA compliant polypropylene material
- Meets EC 1935/2004 food-contact requirements
- Silicone-free standard option
Pack Quantity
Supplied in boxes of 50 filter bags.
Pricing
Price on application – please contact us for a quotation.
Please select the required micron rating, bag size and ring / flange option. The variant SKU uses the Amazon Filters ordering code for the selected configuration.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

