Upgraded Brass 571-VAC-CHK-A RV Vacuum Breaker Check Valve 1/2 DN Male for RV Black Tank Cleaning System Replace b&b Model 571 Check valve,3-Year Warranty

★★★★★ 4.4 52 reviews

US$11.60
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US$11.60
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Free shipping Free 30-day returns

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Product details

Management number 226379259 Release Date 2026/05/09 List Price US$11.60 Model Number 226379259
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  • Dual-Protection Design for Complete Safety:Combines vacuum breaker and check valve in one unit for RV/marine use. Anti-siphon function automatically vents air when water stops, physically preventing dirty water backflow. One-way valve design stops leaks, ensuring total water system protection
  • Universal Fit with Durable Build:Features 1/2-inch NPT standard threads for easy installation in most North American RV plumbing systems.Solid brass body with high-performance rubber seals resists corrosion and wear, performing reliably under various pressures(8-125 PSI) and conditions
  • Versatile Applications for Home & Outdoor Use:Perfect for more than just RVs. Easily install it on garden hose connections to avoid sprinkler water or fertilizer mixtures from siphoning back into your home's drinking water lines. Also great for boat docks, utility sinks, pet washing stations, or any outdoor faucet where backflow protection is needed for peace of mind in daily life
  • Step-by-Step Installation Guide: Preparation: Turn OFF the water supply and depressurize the line. Sealing: Apply 2-3 layers of Teflon tape clockwise onto the male threads. Orientation: Point the L-shaped outlet toward your water tank. The arrow on the valve body must indicate the correct water flow direction (FROM supply TO tank). Tightening: Hand-tighten fully first, then use a wrench for only an additional 1/2 turn. Avoid over-tightening to damage
  • Tested Quality & Assurance:Each valve is factory-tested for proper using and seal integrity. Backed by full support, its rugged construction ensures years of maintenance-free service, making it the perfect upgrade or replacement choice

UPC 727636500215
ASIN B0D4DNL6SF
Size Brass
Brand Name supeiqality
Unit Count 1.0 Count
Valve Type Check Valve
Thread Size NPT Male 1/2 inch
Thread Type NPT Male
Manufacturer supeiqality
Model Number b&b model 571
Material Type Brass
Connector Type Threaded
Item Type Name 571-Vac-Chk-A RV Vacuum Breaker Check Valve
Exterior Finish Brass
Number of Ports 2
Maximum Pressure 125 Pound per Square Inch
Specification Met NFPA, ASME
Included Components 571-Vac-Chk-A RV Vacuum Breaker Check Valve
Outlet Connection Size 0.5 Inches
Outlet Connection Type NPT
Manufacturer Part Number b&b Model 571
Manufacturer Warranty Description 2

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52 ratings | 21 reviews
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