Watts - FPMB Series - 20" x 2.5" Flow-Pro Melt Blown Sediment Filter
20" x 2.5" Flow-Pro Melt Blown Sediment Filter
Pure polypropylene construction that captures sediment from 50 down to 1 micron without leaching contaminants into your water supply
Melt blown polypropylene captures sediment layer by layer
Depth Filtration
Melt blown construction creates graduated density from outer to inner layers, trapping particles throughout the entire cartridge depth for maximum capacity
Zero Leachables
Pure polypropylene with food-grade ingredients means nothing migrates from the filter into your water, critical for potable water and beverage applications
Chemical Resistance
Handles aggressive water chemistry without degrading, making this filter suitable for well water, plating solutions, and industrial pre-filtration applications
High Dirt Capacity
The density gradient structure holds more sediment than surface filters before pressure differential reaches the 30 PSID changeout recommendation
Watts FPMB Series Technical Details
| Dimensions | 20" x 2.5" |
| Material | Melt blown polypropylene |
| Micron Ratings | 1, 5, 10, 20, 50 micron |
| Max Temperature | 140°F / 60°C |
| Max Pressure | 40 PSID |
| Flow Rate | 2-8 GPM (varies by micron rating) |
| Recommended Change | 30 PSID or 6 months |
| Packaging | Individually shrink wrapped |
Fits standard 20" housings
The Watts FPMB Series filter fits any standard 20" x 2.5" filter housing, including Big Blue housings from Watts, Pentek, and most major manufacturers. Available in Standard, Full-Flow, and grooved configurations to match your housing style. Commonly used in whole house filtration systems, well water treatment, and as pre-filtration upstream of reverse osmosis systems.
Replacement schedule by application
Well Water
Heavy sediment loads from iron, sand, and silt require more frequent changes. Monitor pressure drop and replace at 30 PSID or when flow decreases noticeably.
Whole House Municipal
Pre-treated city water with minimal sediment extends filter life. Replace when pressure differential reaches 30 PSID or annually, whichever comes first.
RO Pre-Filtration
Protecting reverse osmosis membranes requires consistent pre-filtration. Replace sediment filters every 6 months regardless of pressure to prevent membrane fouling.
Food Grade Construction
NSF-compliant polypropylene safe for potable water and beverage applications
Multiple Micron Options
Choose from 1, 5, 10, 20, or 50 micron ratings to match your specific sediment challenge
Universal Fit
Standard 20" x 2.5" dimensions fit most major brand housings without adapters
Cost Effective
Proven melt blown technology delivers reliable sediment removal at an accessible price point
20" x 2.5" Flow-Pro Melt Blown Sediment Filter
Pure polypropylene construction that captures sediment from 50 down to 1 micron without leaching contaminants into your water supply
Melt blown polypropylene captures sediment layer by layer
Depth Filtration
Melt blown construction creates graduated density from outer to inner layers, trapping particles throughout the entire cartridge depth for maximum capacity
Zero Leachables
Pure polypropylene with food-grade ingredients means nothing migrates from the filter into your water, critical for potable water and beverage applications
Chemical Resistance
Handles aggressive water chemistry without degrading, making this filter suitable for well water, plating solutions, and industrial pre-filtration applications
High Dirt Capacity
The density gradient structure holds more sediment than surface filters before pressure differential reaches the 30 PSID changeout recommendation
Watts FPMB Series Technical Details
| Dimensions | 20" x 2.5" |
| Material | Melt blown polypropylene |
| Micron Ratings | 1, 5, 10, 20, 50 micron |
| Max Temperature | 140°F / 60°C |
| Max Pressure | 40 PSID |
| Flow Rate | 2-8 GPM (varies by micron rating) |
| Recommended Change | 30 PSID or 6 months |
| Packaging | Individually shrink wrapped |
Fits standard 20" housings
The Watts FPMB Series filter fits any standard 20" x 2.5" filter housing, including Big Blue housings from Watts, Pentek, and most major manufacturers. Available in Standard, Full-Flow, and grooved configurations to match your housing style. Commonly used in whole house filtration systems, well water treatment, and as pre-filtration upstream of reverse osmosis systems.
Replacement schedule by application
Well Water
Heavy sediment loads from iron, sand, and silt require more frequent changes. Monitor pressure drop and replace at 30 PSID or when flow decreases noticeably.
Whole House Municipal
Pre-treated city water with minimal sediment extends filter life. Replace when pressure differential reaches 30 PSID or annually, whichever comes first.
RO Pre-Filtration
Protecting reverse osmosis membranes requires consistent pre-filtration. Replace sediment filters every 6 months regardless of pressure to prevent membrane fouling.
Food Grade Construction
NSF-compliant polypropylene safe for potable water and beverage applications
Multiple Micron Options
Choose from 1, 5, 10, 20, or 50 micron ratings to match your specific sediment challenge
Universal Fit
Standard 20" x 2.5" dimensions fit most major brand housings without adapters
Cost Effective
Proven melt blown technology delivers reliable sediment removal at an accessible price point
Original: $10.99
-65%$10.99
$3.85Description
20" x 2.5" Flow-Pro Melt Blown Sediment Filter
Pure polypropylene construction that captures sediment from 50 down to 1 micron without leaching contaminants into your water supply
Melt blown polypropylene captures sediment layer by layer
Depth Filtration
Melt blown construction creates graduated density from outer to inner layers, trapping particles throughout the entire cartridge depth for maximum capacity
Zero Leachables
Pure polypropylene with food-grade ingredients means nothing migrates from the filter into your water, critical for potable water and beverage applications
Chemical Resistance
Handles aggressive water chemistry without degrading, making this filter suitable for well water, plating solutions, and industrial pre-filtration applications
High Dirt Capacity
The density gradient structure holds more sediment than surface filters before pressure differential reaches the 30 PSID changeout recommendation
Watts FPMB Series Technical Details
| Dimensions | 20" x 2.5" |
| Material | Melt blown polypropylene |
| Micron Ratings | 1, 5, 10, 20, 50 micron |
| Max Temperature | 140°F / 60°C |
| Max Pressure | 40 PSID |
| Flow Rate | 2-8 GPM (varies by micron rating) |
| Recommended Change | 30 PSID or 6 months |
| Packaging | Individually shrink wrapped |
Fits standard 20" housings
The Watts FPMB Series filter fits any standard 20" x 2.5" filter housing, including Big Blue housings from Watts, Pentek, and most major manufacturers. Available in Standard, Full-Flow, and grooved configurations to match your housing style. Commonly used in whole house filtration systems, well water treatment, and as pre-filtration upstream of reverse osmosis systems.
Replacement schedule by application
Well Water
Heavy sediment loads from iron, sand, and silt require more frequent changes. Monitor pressure drop and replace at 30 PSID or when flow decreases noticeably.
Whole House Municipal
Pre-treated city water with minimal sediment extends filter life. Replace when pressure differential reaches 30 PSID or annually, whichever comes first.
RO Pre-Filtration
Protecting reverse osmosis membranes requires consistent pre-filtration. Replace sediment filters every 6 months regardless of pressure to prevent membrane fouling.
Food Grade Construction
NSF-compliant polypropylene safe for potable water and beverage applications
Multiple Micron Options
Choose from 1, 5, 10, 20, or 50 micron ratings to match your specific sediment challenge
Universal Fit
Standard 20" x 2.5" dimensions fit most major brand housings without adapters
Cost Effective
Proven melt blown technology delivers reliable sediment removal at an accessible price point
