S20A-20J-Box
12 pcs. x 20″ x 4.5″ x 20 Micron PP String Wound Sediment Big Blue Water Filter Cartridge
Box of 12 pcs.
20” x 4.5” x 20 Micron String Wound Polypropylene Sediment Big Blue Water Filter Cartridge
NSF certified 20 x 4.5 inch sediment big blue water filter cartridges.
Best Price, Free Shipping Australia wide, GST and delivery inclusive.
Our pure polypropylene Sedifilt big blue water filter cartridges are free from any extractables and contain no lubricants, wetting agents, emulsifiers, anti-oxidants or anti-static agents, etc.
Sedifilt big blue whole house water filter cartridges are certified by NSF International to NSF/ANSI Standard 61 for Drinking Water System Components and Health Effects.
Media: Extractables Free Polypropylene
Nominal Length: 20 inch
Micron Rating: 20 micron
Outer Diameter: 4.5" (114.5 mm)
Inner Diameter: 27.5 mm
Core Material: Polypropylene
End Adapter: No end adapters (double open end, DOE)
Sediment Big Blue Water Filter Cartridges remove algae, dirt, particulate matter, rust, sand, sediment and silt.
4.5 inch Sediment Best Big Blue Water Filter Replacement Cartridges are suitable for use in domestic, commercial and industrial applications like RO pretreatment (SDI reduction), Drinking water, Beverage processing, Seawater desalination, Whole house water filtration, Electronics and electroplating, Photographic solution, Gas purification .. etc.
Features
- No chemicals to leach-out with new melt spinning and yarn forming process.
- No media migration because the yarn consists of continuous filaments.
- True graded density-new winding technology gives denser winding in inner layers and coarser winding in outer layers.
- High dirt holding capacity and longer life as particles are trapped throughout the entire cross section of water filter.
- Better performance – multi-lobal cross section filaments with random 3 dimensional media structure captures more particles compared to conventional water filters.
- High bulk media having improved void to solid ration gives higher flow rates with low pressure drop.
- 100% polypropylene – wide chemical compatibility and excellent micro-organism resistance.
- High structural stability, i.e. no shifting of media, excellent knife-edge sealing.
- Firmer structure gives improved resistance to particle unloading and more consistent performance.
- Incinerates to trace ash with no hazardous volatiles for environmentally friendly disposal.
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Estimated Delivery:Jul 15 - Jul 19
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Next Day Dispatch

S20A-20J-Box
12 pcs. x 20″ x 4.5″ x 20 Micron PP String Wound Sediment Big Blue Water Filter Cartridge
Box of 12 pcs.
20” x 4.5” x 20 Micron String Wound Polypropylene Sediment Big Blue Water Filter Cartridge
NSF certified 20 x 4.5 inch sediment big blue water filter cartridges.
Best Price, Free Shipping Australia wide, GST and delivery inclusive.
Our pure polypropylene Sedifilt big blue water filter cartridges are free from any extractables and contain no lubricants, wetting agents, emulsifiers, anti-oxidants or anti-static agents, etc.
Sedifilt big blue whole house water filter cartridges are certified by NSF International to NSF/ANSI Standard 61 for Drinking Water System Components and Health Effects.
Media: Extractables Free Polypropylene
Nominal Length: 20 inch
Micron Rating: 20 micron
Outer Diameter: 4.5" (114.5 mm)
Inner Diameter: 27.5 mm
Core Material: Polypropylene
End Adapter: No end adapters (double open end, DOE)
Sediment Big Blue Water Filter Cartridges remove algae, dirt, particulate matter, rust, sand, sediment and silt.
4.5 inch Sediment Best Big Blue Water Filter Replacement Cartridges are suitable for use in domestic, commercial and industrial applications like RO pretreatment (SDI reduction), Drinking water, Beverage processing, Seawater desalination, Whole house water filtration, Electronics and electroplating, Photographic solution, Gas purification .. etc.
Features
- No chemicals to leach-out with new melt spinning and yarn forming process.
- No media migration because the yarn consists of continuous filaments.
- True graded density-new winding technology gives denser winding in inner layers and coarser winding in outer layers.
- High dirt holding capacity and longer life as particles are trapped throughout the entire cross section of water filter.
- Better performance – multi-lobal cross section filaments with random 3 dimensional media structure captures more particles compared to conventional water filters.
- High bulk media having improved void to solid ration gives higher flow rates with low pressure drop.
- 100% polypropylene – wide chemical compatibility and excellent micro-organism resistance.
- High structural stability, i.e. no shifting of media, excellent knife-edge sealing.
- Firmer structure gives improved resistance to particle unloading and more consistent performance.
- Incinerates to trace ash with no hazardous volatiles for environmentally friendly disposal.
Discover more in our FAQ
What types of industrial water treatment products do you offer?
We offer a comprehensive range of industrial water treatment solutions, including:
Filtration Systems – Effectively removes sediment, chlorine, and other impurities to enhance water purity and system longevity.
Reverse Osmosis Membranes – High-performance purification technology that eliminates dissolved solids, contaminants, and impurities for ultra-pure water.
Membrane Housings – Durable, high-pressure enclosures engineered to protect and optimize the performance of RO membranes.
Filter Cartridges – Precision-engineered sediment, carbon, and specialty filters designed to target specific contaminants for enhanced water treatment efficiency.
Chemical Dosing Systems – Precise chemical treatment for water.
Media FRP Pressure Vessels – High-pressure tanks for filtration media.
Ion Exchange Resins – Softening and demineralization solutions.
Water Instruments – pH meters, conductivity meters, and TDS testers.
Rotameter Flow Meters – Accurate flow measurement devices.
Watermaker Parts – Spare parts for marine and industrial watermakers.
Water Quality Test Kits – Portable and lab testing solutions.
How do I know which product is right for my application?
Choosing the right product depends on:
Water quality parameters (TDS, pH, hardness, contaminants)
Flow rate and pressure requirements
Industry-specific needs (food processing, pharmaceuticals, HVAC, etc.)
If you’re unsure, our technical support team can help you select the best solution.
Do you offer bulk pricing for large industrial orders?
Yes! We provide bulk discounts and custom pricing for high-volume orders. Contact us for a personalized quote.
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions. Expedited shipping options are available upon request.
What is your return policy?
We offer a 14-day return policy from the date of delivery. If you are not completely satisfied with your purchase, you can return the item for a refund or exchange, provided it meets our return conditions.
What happens if I receive a damaged or incorrect item?
If your item arrives damaged or you receive the wrong product, please contact us immediately at support@waterfilter.net.au with photos and your order number. We will send a replacement or issue a refund as per our return policy..
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions.
Expedited shipping options are available upon request.
Do you ship internationally?
Yes, we offer international shipping for most of our industrial water treatment products. Contact us for custom shipping quotes and lead times.