OF140-4

OneFlow Anti-Scale System for up to 4 gpm (15 lpm) - Single Cartridge

Sales Channel: Wholesale

  • Chemical-free, salt-free scale prevention system for tap water
  • Connects to cold water supply
  • Single filter housing
  • Maximum flow rate: 4 gpm

Select options below to identify the UPC, Order Code, and Repair Kit for a specific OF140-4

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA