Watts - WPC Series - 20" x 4.5" Pleated Sediment Filter
20" x 4.5" Pleated Sediment Filter
Synthetic pleated cartridge with washable media, superior dirt capacity, and lower pressure drop than wound or spun alternatives
Pleated Design Outperforms Depth Filters
Increased Surface Area
Pleated construction delivers significantly more filtration surface than wound or spun cartridges, resulting in greater dirt holding capacity and extended service intervals
Lower Pressure Drop
Synthetic polypropylene pleats maintain higher flow rates with less resistance compared to depth-style elements, reducing pump strain and energy costs
Washable Media
5 micron and coarser ratings can be cleaned and reused multiple times, reducing replacement costs without compromising filtration performance
No Additives or Binders
Pure synthetic construction eliminates the foaming and filter degradation common with bonded or resin-based media that breaks down over time
Technical Details
| Dimensions | 20" x 4.5" |
| Available Micron Ratings | 0.35, 1, 5, 20, 50 micron |
| Filter Media | Cellulose-free synthetic pleated polypropylene |
| Center Tube | Polypropylene |
| End Caps | Molded polyurethane |
| Maximum Temperature | 140°F (60°C) |
| Minimum Temperature | 40°F (4.4°C) |
| Maximum Pressure | 40 psid |
| Recommended Change-Out | 25 psid |
Housing & Replacement Information
Fits all standard 20" x 4.5" Big Blue filter housings. Direct replacement for Watts FlowMax series: FM-BB-20-0.35, FM-BB-20-1, FM-BB-20-5, FM-BB-20-10, FM-BB-20-20, FM-BB-20-50. WPC series model numbers: WPC1FF20, WPC5FF20, WPC20FF20, WPC50FF20. Suitable for whole-house, well water, and commercial sediment filtration applications.
Service Schedule
Inspect & Clean
For 5 micron and coarser ratings, remove cartridge and rinse pleats thoroughly under running water to extend service life
Replace Cartridge
Monitor pressure differential across the filter. Replace when pressure drop reaches 25 psid or flow rate declines noticeably
Visual Check
Examine pleats for damage, discoloration, or excessive sediment buildup that cannot be cleaned away
Lower Operating Costs
Washable media and extended service life reduce annual filter replacement expenses
Better Flow Rates
Lower initial pressure drop maintains system performance without oversized pumps
Superior Dirt Capacity
Pleated surface area captures more sediment before requiring service or replacement
Individually Wrapped
Each cartridge sealed for purity and protected from contamination until installation
20" x 4.5" Pleated Sediment Filter
Synthetic pleated cartridge with washable media, superior dirt capacity, and lower pressure drop than wound or spun alternatives
Pleated Design Outperforms Depth Filters
Increased Surface Area
Pleated construction delivers significantly more filtration surface than wound or spun cartridges, resulting in greater dirt holding capacity and extended service intervals
Lower Pressure Drop
Synthetic polypropylene pleats maintain higher flow rates with less resistance compared to depth-style elements, reducing pump strain and energy costs
Washable Media
5 micron and coarser ratings can be cleaned and reused multiple times, reducing replacement costs without compromising filtration performance
No Additives or Binders
Pure synthetic construction eliminates the foaming and filter degradation common with bonded or resin-based media that breaks down over time
Technical Details
| Dimensions | 20" x 4.5" |
| Available Micron Ratings | 0.35, 1, 5, 20, 50 micron |
| Filter Media | Cellulose-free synthetic pleated polypropylene |
| Center Tube | Polypropylene |
| End Caps | Molded polyurethane |
| Maximum Temperature | 140°F (60°C) |
| Minimum Temperature | 40°F (4.4°C) |
| Maximum Pressure | 40 psid |
| Recommended Change-Out | 25 psid |
Housing & Replacement Information
Fits all standard 20" x 4.5" Big Blue filter housings. Direct replacement for Watts FlowMax series: FM-BB-20-0.35, FM-BB-20-1, FM-BB-20-5, FM-BB-20-10, FM-BB-20-20, FM-BB-20-50. WPC series model numbers: WPC1FF20, WPC5FF20, WPC20FF20, WPC50FF20. Suitable for whole-house, well water, and commercial sediment filtration applications.
Service Schedule
Inspect & Clean
For 5 micron and coarser ratings, remove cartridge and rinse pleats thoroughly under running water to extend service life
Replace Cartridge
Monitor pressure differential across the filter. Replace when pressure drop reaches 25 psid or flow rate declines noticeably
Visual Check
Examine pleats for damage, discoloration, or excessive sediment buildup that cannot be cleaned away
Lower Operating Costs
Washable media and extended service life reduce annual filter replacement expenses
Better Flow Rates
Lower initial pressure drop maintains system performance without oversized pumps
Superior Dirt Capacity
Pleated surface area captures more sediment before requiring service or replacement
Individually Wrapped
Each cartridge sealed for purity and protected from contamination until installation
Original: $54.00
-65%$54.00
$18.90Description
20" x 4.5" Pleated Sediment Filter
Synthetic pleated cartridge with washable media, superior dirt capacity, and lower pressure drop than wound or spun alternatives
Pleated Design Outperforms Depth Filters
Increased Surface Area
Pleated construction delivers significantly more filtration surface than wound or spun cartridges, resulting in greater dirt holding capacity and extended service intervals
Lower Pressure Drop
Synthetic polypropylene pleats maintain higher flow rates with less resistance compared to depth-style elements, reducing pump strain and energy costs
Washable Media
5 micron and coarser ratings can be cleaned and reused multiple times, reducing replacement costs without compromising filtration performance
No Additives or Binders
Pure synthetic construction eliminates the foaming and filter degradation common with bonded or resin-based media that breaks down over time
Technical Details
| Dimensions | 20" x 4.5" |
| Available Micron Ratings | 0.35, 1, 5, 20, 50 micron |
| Filter Media | Cellulose-free synthetic pleated polypropylene |
| Center Tube | Polypropylene |
| End Caps | Molded polyurethane |
| Maximum Temperature | 140°F (60°C) |
| Minimum Temperature | 40°F (4.4°C) |
| Maximum Pressure | 40 psid |
| Recommended Change-Out | 25 psid |
Housing & Replacement Information
Fits all standard 20" x 4.5" Big Blue filter housings. Direct replacement for Watts FlowMax series: FM-BB-20-0.35, FM-BB-20-1, FM-BB-20-5, FM-BB-20-10, FM-BB-20-20, FM-BB-20-50. WPC series model numbers: WPC1FF20, WPC5FF20, WPC20FF20, WPC50FF20. Suitable for whole-house, well water, and commercial sediment filtration applications.
Service Schedule
Inspect & Clean
For 5 micron and coarser ratings, remove cartridge and rinse pleats thoroughly under running water to extend service life
Replace Cartridge
Monitor pressure differential across the filter. Replace when pressure drop reaches 25 psid or flow rate declines noticeably
Visual Check
Examine pleats for damage, discoloration, or excessive sediment buildup that cannot be cleaned away
Lower Operating Costs
Washable media and extended service life reduce annual filter replacement expenses
Better Flow Rates
Lower initial pressure drop maintains system performance without oversized pumps
Superior Dirt Capacity
Pleated surface area captures more sediment before requiring service or replacement
Individually Wrapped
Each cartridge sealed for purity and protected from contamination until installation
