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Watts - FPMB Series - 10" x 4.5" Flow-Pro Melt Blown Sediment Filter

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Watts - FPMB Series - 10" x 4.5" Flow-Pro Melt Blown Sediment Filter

The Watts FPMB Series melt blown sediment filter delivers reliable particulate removal in a 10" x 4.5" cartridge format designed for standard and full-flow housings. Built from food-grade polypropylene with no leachables, this filter handles potable water, RO pre-filtration, and industrial applications where chemical resistance and high dirt-holding capacity matter.
SPECIFICATIONS

Watts FPMB Series Technical Details

Manufacturer Watts
Dimensions 10" x 4.5"
Filter Media Melt blown polypropylene
Maximum Temperature 140°F / 60°C
Maximum Pressure 40 PSID
Recommended Change-Out 30 PSID
Flow Rate 2-8 GPM (varies by micron rating)
Packaging Individually shrink wrapped
INSTALLATION & USE

How to Install Your FPMB Sediment Filter

  1. Shut off water supply and relieve system pressure by opening a downstream faucet
  2. Unscrew the filter housing sump and remove the old cartridge, inspecting the o-ring and housing for wear or damage
  3. Insert the new Watts FPMB filter into the housing, ensuring it seats properly on the center post
  4. Apply a thin layer of food-grade silicone lubricant to the o-ring and hand-tighten the sump until snug
  5. Turn water supply back on slowly, check for leaks, and purge air from the system before returning to service
COMPATIBILITY

Where This Filter Fits

The Watts FPMB Series fits any standard 10" x 4.5" sediment filter housing. It's commonly used as pre-filtration for reverse osmosis systems, whole-house water filtration, beverage processing, and industrial applications requiring chemical-resistant sediment removal. Available in standard, full-flow, and grooved configurations to match your housing type. Choose your micron rating based on sediment load and downstream equipment protection requirements.

🔧 Pro tip: Replace your FPMB sediment filter when differential pressure reaches 30 PSID or every 3-6 months in residential applications, whichever comes first. Installing a pressure gauge before and after the filter housing lets you monitor performance and avoid unnecessary membrane fouling in downstream RO systems.
The Watts FPMB Series melt blown sediment filter delivers reliable particulate removal in a 10" x 4.5" cartridge format designed for standard and full-flow housings. Built from food-grade polypropylene with no leachables, this filter handles potable water, RO pre-filtration, and industrial applications where chemical resistance and high dirt-holding capacity matter.
SPECIFICATIONS

Watts FPMB Series Technical Details

Manufacturer Watts
Dimensions 10" x 4.5"
Filter Media Melt blown polypropylene
Maximum Temperature 140°F / 60°C
Maximum Pressure 40 PSID
Recommended Change-Out 30 PSID
Flow Rate 2-8 GPM (varies by micron rating)
Packaging Individually shrink wrapped
INSTALLATION & USE

How to Install Your FPMB Sediment Filter

  1. Shut off water supply and relieve system pressure by opening a downstream faucet
  2. Unscrew the filter housing sump and remove the old cartridge, inspecting the o-ring and housing for wear or damage
  3. Insert the new Watts FPMB filter into the housing, ensuring it seats properly on the center post
  4. Apply a thin layer of food-grade silicone lubricant to the o-ring and hand-tighten the sump until snug
  5. Turn water supply back on slowly, check for leaks, and purge air from the system before returning to service
COMPATIBILITY

Where This Filter Fits

The Watts FPMB Series fits any standard 10" x 4.5" sediment filter housing. It's commonly used as pre-filtration for reverse osmosis systems, whole-house water filtration, beverage processing, and industrial applications requiring chemical-resistant sediment removal. Available in standard, full-flow, and grooved configurations to match your housing type. Choose your micron rating based on sediment load and downstream equipment protection requirements.

🔧 Pro tip: Replace your FPMB sediment filter when differential pressure reaches 30 PSID or every 3-6 months in residential applications, whichever comes first. Installing a pressure gauge before and after the filter housing lets you monitor performance and avoid unnecessary membrane fouling in downstream RO systems.
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From $11.28

Original: $32.24

-65%
Watts - FPMB Series - 10" x 4.5" Flow-Pro Melt Blown Sediment Filter—

$32.24

$11.28

Description

The Watts FPMB Series melt blown sediment filter delivers reliable particulate removal in a 10" x 4.5" cartridge format designed for standard and full-flow housings. Built from food-grade polypropylene with no leachables, this filter handles potable water, RO pre-filtration, and industrial applications where chemical resistance and high dirt-holding capacity matter.
SPECIFICATIONS

Watts FPMB Series Technical Details

Manufacturer Watts
Dimensions 10" x 4.5"
Filter Media Melt blown polypropylene
Maximum Temperature 140°F / 60°C
Maximum Pressure 40 PSID
Recommended Change-Out 30 PSID
Flow Rate 2-8 GPM (varies by micron rating)
Packaging Individually shrink wrapped
INSTALLATION & USE

How to Install Your FPMB Sediment Filter

  1. Shut off water supply and relieve system pressure by opening a downstream faucet
  2. Unscrew the filter housing sump and remove the old cartridge, inspecting the o-ring and housing for wear or damage
  3. Insert the new Watts FPMB filter into the housing, ensuring it seats properly on the center post
  4. Apply a thin layer of food-grade silicone lubricant to the o-ring and hand-tighten the sump until snug
  5. Turn water supply back on slowly, check for leaks, and purge air from the system before returning to service
COMPATIBILITY

Where This Filter Fits

The Watts FPMB Series fits any standard 10" x 4.5" sediment filter housing. It's commonly used as pre-filtration for reverse osmosis systems, whole-house water filtration, beverage processing, and industrial applications requiring chemical-resistant sediment removal. Available in standard, full-flow, and grooved configurations to match your housing type. Choose your micron rating based on sediment load and downstream equipment protection requirements.

🔧 Pro tip: Replace your FPMB sediment filter when differential pressure reaches 30 PSID or every 3-6 months in residential applications, whichever comes first. Installing a pressure gauge before and after the filter housing lets you monitor performance and avoid unnecessary membrane fouling in downstream RO systems.
Watts - FPMB Series - 10" x 4.5" Flow-Pro Melt Blown Sediment Filter | Isopure Water