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The flexible hose connecting your shut-off valve to your faucet is small, cheap, and one of the most common sources of catastrophic water damage I see. When a low-quality supply line bursts while you’re at work, it can dump hundreds of gallons. Braided stainless steel lines are inexpensive insurance — usually under $12.
Quick Picks
- Best Overall: Fluidmaster No-Burst Braided Supply Line
- Best Heavy-Duty: EZ-FLO Braided Stainless Steel Line
- Best Budget: Eastman Braided Faucet Connector
Fluidmaster No-Burst — Best Overall
Braided stainless over a reinforced PEX core, with quality nuts that thread cleanly. Fluidmaster is the brand I reach for first; their connectors rarely give trouble.
EZ-FLO Braided Stainless — Best Heavy-Duty
Thicker braid and robust ferrules for a long-life install. A good pick if you want to set it and forget it for a decade-plus.
Eastman Braided Connector — Best Budget
Reliable and cheap for a quick swap. Still far safer than the old vinyl or PVC lines it replaces.
How to Replace a Supply Line (Pro Tips)
Shut off the angle stop, open the faucet to relieve pressure, and put a towel and pan under the connection. Hand-thread the new line onto both ends, then snug about a quarter-turn past hand-tight with a wrench — these have rubber gasket seals and do not need to be cranked. Turn the water back on and watch the joints for a minute.
FAQ
What length and size? Most bathroom and kitchen faucets use a 3/8″ compression to 1/2″ FIP connector; measure the run and buy slightly longer, never tight.
How often should I replace them? Inspect every few years; replace any line showing rust spots, kinks, or bulging immediately.
Braided vs. plastic? Always braided stainless. Plastic and vinyl lines are the ones that fail.
Bottom Line
Spend the extra two dollars on a Fluidmaster No-Burst. A supply line is the cheapest part under your sink and the most expensive one to have fail.
FAQ
How often should I replace supply lines?
Braided stainless lines last 5–10 years. Replace older rubber lines proactively — a burst supply line is a top cause of home water damage.
What size faucet supply line do I need?
Match the connections: typically 3/8-inch compression at the valve and 1/2-inch or 3/8-inch at the faucet. Measure length with a little slack.
Are braided steel lines better than rubber?
Yes — braided stainless resists bursting far better than plain rubber and is the standard for a reason.