Caps and Tethers

For Protection of Backflow Preventer Test Cocks

  • Brass cap has O-ring seal and rubber tether. Fits 1/8 in. male x SAE test cocks
  • Plastic cap with rubber tether fits 1/4 inch female test cocks
  • Four required per backflow preventer
  • Protects backflow preventer test cocks from dirt and debris

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

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