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911U

Class 125 U.L. Listed Cast Iron Flanged End Y Strainers for Firelines

  • Sizes 2 1⁄2 in. – 12 in. (60 – 300 mm)
  • Cast Iron body and extra large capacity 304 Stainless Steel baskets for a very low pressure drop
  • UL approved strainers to prevent clogging in fire service systems such as automatic sprinkler systems and various spray systems
  • In accordance with UL Subject 321: Fireline Strainers extra large baskets have a minimum open area ratio of 4 to 1

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 911U

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet 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