Filtration separation projects usually begin with a format question: do you want screw-in sediment cartridges, drop-in filter bags, or a bulk supply of welded socks? The four options here range from a filter sock bag to a bulk welded-bag lot, and from a sediment cartridge set to a process filter set. Listed prices span $19.99 to $327.83, so the right choice depends more on your housing, your part-number requirements, and how many changeouts you want to plan for than on micron rating alone.
Quick take
Choose the sediment cartridge set if you have a Big Blue-style filter housing and want a larger cartridge inventory. Choose the Process Filtration option when your system calls for the exact P/N 3P879 - T15R10A. Choose the industrial filter sock if you want a sock-bag setup for liquid filtration. Choose the bulk sock lot if you expect to do many bag changes.
Listed Price Comparison
| Product | Listed Price | Price Bar | What stands out |
|---|---|---|---|
| 20 Pack 10" x 4.5" String Wound Sediment Water Filter | USD 152.45 | 20 cartridges, 30,000-gallon capacity | |
| Process Filtration - P/N: 3P879 - T15R10A - Water Filter | USD 49.99 | Six filters, exact part number | |
| Industrial filter bag, 1 Micron Filter Sock Bags | USD 19.99 | Single 18-inch 1-micron sock | |
| Welded Industrial Filter Sock Bags Plastic Ring Flange | USD 327.83 | 50-bag lot, 0.5-micron rating |
The price bar shows each option's relative position in this group's listed price range.
Decision Matrix
| If your setup is... | Start here | Why |
|---|---|---|
| A Big Blue-style housing that needs sediment cartridges | Sediment cartridge set | Large-capacity cartridges with broad compatibility |
| A process filtration system with a specific part number | Process Filtration filter | Direct part-number match in a multi-filter set |
| A single filter bag for a liquid filtration task | Industrial filter sock | Single-bag format for one focused job |
| A high-volume operation needing many bags at once | Bulk sock set | Large lot for repeated changeouts |
Product Notes
20 Pack 10" x 4.5" String Wound Sediment Water Filter 1/5/10 Micron for Big Blue
The main draw of this sediment set is the usable inventory: 10-inch by 4.5-inch string-wound cartridges for a Big Blue-style housing, with a listed 30,000-gallon capacity. The compatibility list includes common systems from APEC, Culligan, iSpring, Pentek, and others, and the set is certified against NSF/ANSI Standard 42 for material requirements. It is a 20-pack, so it suits someone who wants to stock more than one replacement cycle. The trade-off is that buying 20 cartridges at once is overkill if you only plan to change a single filter.
Process Filtration - P/N: 3P879 - T15R10A - Water Filter - QTY. (6) - NEW
This set is a direct part-number match: Process Filtration P/N 3P879 - T15R10A, sold as six filters. It is marked New - Open box, so you are buying an opened six-pack rather than an unopened box, and the country of origin is given as the United States. The strength is having six units of the same part for a scheduled changeout. The limitation is that this set is only the right call if your equipment uses that exact P/N.
Industrial filter bag, 1 Micron Filter Sock Bags, Water Liquid Oil Dust Fuel-1um
This is the single-bag route: one 18-inch PE filter sock with a 7-inch non-corrosive metal ring. It is new and made in the United States. If you want to trial a filter bag or handle one small filtration task, the single-unit format is the reason to choose it. The limitation is the same: you get one sock, so it will not carry a workshop through multiple changeouts.
Welded Industrial Filter Sock Bags Plastic Ring Flange Water Liquid Oil WVO Fuel
The Duda Energy welded filter sock set covers a full replacement cycle: a 50-bag lot in Size#4, sized 4" x 14", with a 0.5-micron rating. The welded seams and plastic ring flange are part of the bag design, and the lot quantity is what makes it a stocking choice. The limitation is the scale: it is the highest-priced option in this comparison, and the 50-bag quantity is far more than a single-bag trial needs.
Final Recommendation by Use Case
For a Big Blue-style sediment cartridge replacement, start with the sediment cartridge set. For an exact process filter part number, the Process Filtration set is the one to match. If you need a sock for a small filtration job, the industrial filter sock is the simple buy. If you're stocking a shop or know you'll change bags often, the bulk sock set gives you the most bags in one order.
