Woodford Freezeless Wall Faucet Model 19 — 12-inch Rough-In, Anti-Siphon Backflow Protection

The Woodford 19CP-12 is a freezeless outdoor wall faucet with built-in anti-siphon protection and a 12-inch rough-in designed for reliable year-round residential irrigation.

This Model 19 wall faucet combines freeze-resistant design with an integrated atmospheric vent and patented check to prevent backflow. Built for outdoor hose and irrigation use, the unit resists rupture when the valve is closed even with a hose attached, and it includes a resetting pressure relief valve to safeguard the valve body. The 19CP-12 pairs commercial-grade materials — stainless steel nozzle seat, EPDM packing and a powder-coated die-cast aluminum handle — with a compact 12" installation depth (13 1/4" mounting overall) for straightforward replacement or new construction.

How does the 19CP-12 prevent backflow and contamination?

The faucet includes an integral anti-siphon mechanism combining an atmospheric vent and a patented check to stop water from being drawn back into potable lines. A resetting pressure relief valve relieves trapped pressure and helps maintain safe operation after thermal events or line pressure shifts.

• Atmospheric vent and patented check provide anti-siphon protection
• Integral backflow prevention device built into the valve body
• Resetting pressure relief valve reduces pressure-related stress

What materials and components make it durable for outdoor use?

Key wear points use corrosion-resistant parts to extend service life outdoors. The nozzle has a 3/4" male hose thread with a stainless steel seat, while EPDM packing and full-circle operating threads help keep the valve leak-free through repeated cycles.

• Stainless steel seat prevents wire draw and resists corrosion
• EPDM packing for long-term leak prevention
• Powder-coated die-cast aluminum oval handle resists weathering

What are the installation and connection options for this model?

The 19CP-12 accepts either a 1/2" male thread or a 1/2" female copper inlet, making it adaptable to typical residential water lines. The faucet’s 12" rough-in (13 1/4" mounting depth) fits common wall thicknesses and includes an adjustable polycarbonate flange for neat wall finishing.

• Choice of 1/2" male thread or 1/2" female copper inlet
• 12" rough-in with 13 1/4" overall mounting depth
• Adjustable polycarbonate wall flange for trimmed installations

How does the 19CP-12 perform under pressure and temperature limits?

Designed for residential irrigation, the valve is rated for typical outdoor supply conditions with clear maximums for safety and longevity. Follow local plumbing codes for installation and do not exceed published limits to ensure continued freeze-resistance and anti-siphon performance.

• Maximum pressure: 125 p.s.i.
• Maximum temperature: 120°F
• No-lead solder construction where applicable for code compliance

Who is this for: The Woodford 19CP-12 is aimed at homeowners, landscapers and contractors looking for a dependable freezeless exterior faucet that keeps garden hoses and irrigation systems isolated from potable water. It’s suitable for replacement jobs and new builds where anti-siphon protection, durability and a compact 12" rough-in are priorities. Optional accessories, such as a tee key, are available separately for service use.

Features at a glance:

• 3/4" male hose thread nozzle with stainless steel seat to prevent wire draw
• EPDM packing and full-circle operating threads reduce leak risk
• Standard "O" size seat washer and no-lead solder where used
• Oval powder-coated die-cast aluminum handle; optional tee key available
• Adjustable polycarbonate wall flange; max pressure 125 p.s.i., max temperature 120°F