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Brass RV Black Tank Flush Vacuum Breaker Check Valve, 1/2" MPT
✅ In stock
F
Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Nov 6, 2026 10:26 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
ASIAA-US
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Dual-Protection Design for Complete Safety:RV vacuum breaker check valve 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:Compatible with B&B model 571 check valve,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
⚙️ Specifications
Material
Brass
Brand
supeiqality
Exterior Finish
Brass
Inlet Connection Size
0.5 inches
Inlet Connection Type
Threaded
Outlet Connection Type
NPT
Maximum Operating Pressure
125 psi
Number of Ports
2
Outlet Connection Size
0.5 inches
Specification Met
NFPA, ASME
Brand Name
supeiqality
