The Homewerks VACVBKX1B Vacuum Breaker Replacement Kit is designed for traditional anti-siphon, frost-free sillcock valves. This kit includes the necessary components to replace the vacuum breaker in these types of outdoor faucets.

The Legend Valve 108-903 T-550 Vacuum Breaker Repair Kit is another option for repairing anti-siphon, frost-free sillcock valves. This kit is specifically made for Legend T-550 and T-550A models, and it includes a stainless steel cap, a body with a rubber O-ring, and a piston.

Both the Homewerks and KNOWAIR (the manufacturer of the Legend Valve kit) kits are compatible with standard frost-free anti-siphon valves. The Homewerks kit includes a body with a rubber O-ring, a piston, and a stainless steel cap, while the KNOWAIR kit has the same components but is designed specifically for Legend T-550 and T-550A faucets.

The KNOWAIR kit body size has a top diameter of 1.25 inches (1 1/4") and a bottom diameter of 0.875 inches (7/8"), with threads that fit only the Legend brand of outdoor faucets. For proper assembly, the flat end of the piston should face up inside the body, and the prongs or teeth should face downward towards the valve.

Both the Homewerks and KNOWAIR kits provide a simple and effective solution for replacing the vacuum breaker in traditional anti-siphon, frost-free sillcock valves, ensuring the proper functioning and safety of these outdoor water fixtures.

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