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Caps and Tethers

For Protection of Backflow Preventer Test Cocks

Caps and Tethers are designed to protect backflow preventer test cocks from dirt and debris. Four are required per backflow preventer. Models include plastic cap with rubber tether and brass cap with rubber tether.


  • 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 a Model

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

Approval Information

For approval information, please refer to the products specification sheet. For any other information on product certification and documentation information, please visit our certification partner websites: