2Pcs PK1390 Self-Draining Vacuum Breaker Replacement - Stops Outdoor

Our review of the 2Pcs PK1390 self-draining vacuum breaker replacement looks at whether this small adapter actually solves common outdoor faucet leaks and holds up over time. For homeowners and handypersons who need a simple replacement kit for fine-thread outdoor faucets and hose bibs, the PK1390 is compelling because it pairs solid metal construction with a direct, OEM-compatible fit in many installations. Installation experiences vary, but the single biggest reason to consider this kit is its straightforward role as a replacement vacuum breaker that prevents backflow and helps stop drips at the spout.

Key Features

• Self-draining design: The vacuum breaker ejects trapped water to prevent freezing and reduce internal corrosion after the faucet is turned off.
• Fine-thread fit: Sized for fine thread outdoor faucets and hose bibs, it offers a close replacement for common OEM parts and fittings.
• Metal construction: Made from rust-resistant metal to extend service life on exposed outdoor faucets.
• Two pieces per pack: Includes two vacuum breakers so you can replace more than one faucet or keep a spare for future maintenance.
• Simple installation: The straightforward threaded design lets many users install the part with basic hand tools in a short time.
• Replacement focus: Intended specifically to address leaking and functional failures of external faucet valves.

Who It's For

The PK1390 is a good choice for homeowners, landlords, and maintenance workers who need a low-cost replacement for fine-thread outdoor faucets and hose bibs. It is especially useful for properties in climates where a self-draining valve reduces freeze risk and where a durable metal part is preferred over plastics.

It is not intended for use with potable water applications, so those needing certified drinking-water components should look for a product with explicit potable-water ratings. Also, if your faucet uses coarse threads or a proprietary valve body, verify dimensions before buying to avoid fit issues.

Pros & Cons

Pros

• Durable metal build offers better rust resistance than many plastic alternatives.
• Two-piece pack provides spare parts and added value for multi-faucet households.
• Designed to address leaks and backflow with a self-draining mechanism.

Cons

• Some users report mixed installation experiences and occasional thread-fit issues on nonstandard faucets.

Specifications

Model	PK1390
Package Quantity	2 pieces
Inner Diameter	1.01 in
Thread Outer Diameter	1.04 in
Length	1.93 in
Material	Rust-resistant metal
Intended Use	Outdoor faucets and hose bibs (not for drinking water)

Our Verdict

The PK1390 vacuum breaker is a practical, value-oriented choice for replacing leaky fine-thread outdoor faucets when a metal, self-draining valve is needed. It offers useful durability and a spare part in the pack, making it a sensible option for homeowners and maintenance professionals who want a direct replacement without specialty fittings.

Frequently Asked Questions

Will this work on all outdoor faucets?
It fits fine-thread outdoor faucets and many hose bibs, but confirm the 1.01 in inner diameter and 1.04 in thread outer diameter before purchasing.

Is this safe for drinking water?
No, the valves are designed for outdoor use only and are not rated for drinking water applications.

What if it leaks after installation?
Contact the seller for support or replacement, and double-check thread compatibility and proper installation tightness.