WATTS - FLOW-PRO 5M-4 Pack 5-Micron Sediment Water
WATTS FLOW-PRO 5M Technical Details
| Model Number | FPMB5-978 |
| Dimensions | 9-7/8" × 2.5" (fits standard 10" housings) |
| Filtration Rating | 5 micron nominal |
| Media Type | Melt-blown polypropylene microfiber |
| Certification | ANSI/NSF Standard 42 Component Certified |
| Quantity | 4 cartridges per pack |
| Applications | Whole-house systems, RO pre-filtration |
| Flow Direction | Outside-in radial filtration |
Cartridge Replacement Procedure
- Shut off water supply and relieve system pressure by opening downstream faucet or pressure relief button on housing
- Unscrew housing sump using filter wrench, remove spent cartridge, and clean sump interior with mild soap solution
- Install new WATTS FLOW-PRO 5M cartridge, lubricate o-ring with food-grade silicone, and hand-tighten housing until snug
- Restore water supply slowly, inspect for leaks, and flush system for 3-5 minutes to purge air and carbon fines
- Replace cartridge every 6-12 months depending on sediment load and pressure drop across housing
Housing & System Fit
The WATTS FLOW-PRO 5M fits all standard 10-inch filter housings with 2.5-inch outer diameter capacity, including brands like Pentek, Hydronix, Culligan, and generic Big Blue housings. Commonly deployed as first-stage sediment pre-filtration in reverse osmosis systems or as primary filtration in whole-house configurations where municipal or well water carries sand, silt, rust, and particulate matter. The 5-micron rating provides balanced protection for downstream carbon blocks and RO membranes without excessive pressure drop.
WATTS FLOW-PRO 5M Technical Details
| Model Number | FPMB5-978 |
| Dimensions | 9-7/8" × 2.5" (fits standard 10" housings) |
| Filtration Rating | 5 micron nominal |
| Media Type | Melt-blown polypropylene microfiber |
| Certification | ANSI/NSF Standard 42 Component Certified |
| Quantity | 4 cartridges per pack |
| Applications | Whole-house systems, RO pre-filtration |
| Flow Direction | Outside-in radial filtration |
Cartridge Replacement Procedure
- Shut off water supply and relieve system pressure by opening downstream faucet or pressure relief button on housing
- Unscrew housing sump using filter wrench, remove spent cartridge, and clean sump interior with mild soap solution
- Install new WATTS FLOW-PRO 5M cartridge, lubricate o-ring with food-grade silicone, and hand-tighten housing until snug
- Restore water supply slowly, inspect for leaks, and flush system for 3-5 minutes to purge air and carbon fines
- Replace cartridge every 6-12 months depending on sediment load and pressure drop across housing
Housing & System Fit
The WATTS FLOW-PRO 5M fits all standard 10-inch filter housings with 2.5-inch outer diameter capacity, including brands like Pentek, Hydronix, Culligan, and generic Big Blue housings. Commonly deployed as first-stage sediment pre-filtration in reverse osmosis systems or as primary filtration in whole-house configurations where municipal or well water carries sand, silt, rust, and particulate matter. The 5-micron rating provides balanced protection for downstream carbon blocks and RO membranes without excessive pressure drop.
Original: $19.99
-65%$19.99
$7.00Description
WATTS FLOW-PRO 5M Technical Details
| Model Number | FPMB5-978 |
| Dimensions | 9-7/8" × 2.5" (fits standard 10" housings) |
| Filtration Rating | 5 micron nominal |
| Media Type | Melt-blown polypropylene microfiber |
| Certification | ANSI/NSF Standard 42 Component Certified |
| Quantity | 4 cartridges per pack |
| Applications | Whole-house systems, RO pre-filtration |
| Flow Direction | Outside-in radial filtration |
Cartridge Replacement Procedure
- Shut off water supply and relieve system pressure by opening downstream faucet or pressure relief button on housing
- Unscrew housing sump using filter wrench, remove spent cartridge, and clean sump interior with mild soap solution
- Install new WATTS FLOW-PRO 5M cartridge, lubricate o-ring with food-grade silicone, and hand-tighten housing until snug
- Restore water supply slowly, inspect for leaks, and flush system for 3-5 minutes to purge air and carbon fines
- Replace cartridge every 6-12 months depending on sediment load and pressure drop across housing
Housing & System Fit
The WATTS FLOW-PRO 5M fits all standard 10-inch filter housings with 2.5-inch outer diameter capacity, including brands like Pentek, Hydronix, Culligan, and generic Big Blue housings. Commonly deployed as first-stage sediment pre-filtration in reverse osmosis systems or as primary filtration in whole-house configurations where municipal or well water carries sand, silt, rust, and particulate matter. The 5-micron rating provides balanced protection for downstream carbon blocks and RO membranes without excessive pressure drop.
