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Flow-Max® Full-Flow (BB) 20" × 4½", 1 Micron Absolute Pleated Filter

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  In Stock
  •   Model # FM-BB-20-1A
  •   Brand Watts
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Flow-Max® industrial quality pleated sediment filters in all standard 10", 20", and big blue sizes. Available in 0.35 & 1 micron absolute (99.9% removal), and nominal ratings of 1, 5, 20, and 50 microns. Each cartridges is individually wrapped.

Flow-Max® filter cartridges outperform wound, spun, melt blown, or resin bonded filter elements because these cartridges are pleated to provide increased surface area and longer life. Further saving are provided because the 100% synthetic filter media is cleanable down to 5 microns.

Cartridges rated for temperatures from 40 - 125 °F. Standard 10" and 20" cartridges have color-coded micron rating, end caps. Big Blue sizes have micron rating embossed in end cap.

Features and benefits

  • Pleated for increased surface area
  • Long life / reduced filtration costs
  • Greater dirt holding capacity
  • Cleanable and reusable, 5 µ and up (Standard Media)
  • Wide range of micron ratings available
  • Shrink wrapped for purity

  Flow-Max Filter Cartridges Information

Filter Media Synthetic (100% cellulose-free) End Caps Molded Urethane
Center Tubes PVC Temperature Range 40°F - 140°F (4.4°C - 60°C)
Recommended Change Out 20-30 PSID* Maximum Pressure Change 40 PSID*
Flow rate per 20" cartridge 12 GPM    

* Pounds per square-inch drop

This cartridge replaces:
  • Harmsco PP-BB-20-1