Plumbing Picks is reader-supported. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you.
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.
Braided stainless · standard comp x FIP ends · burst-resistant
- Braided stainless will not crack like old rigid risers
- Standard faucet and toilet end fittings
- Flexes to route under any sink
- Confirm both end sizes before buying
- Over-tightening cracks the nut
- Measure length so it is not pulled taut
Verdict: The default connector for faucet and toilet hookups.
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.
Heavier braid · reinforced couplings
- Thicker braid for hard-water or high-use spots
- Reinforced couplings for extra margin
- Reassuring behind a hidden valve
- Stiffer to route in tight cabinets
- Slightly pricier
- Still verify your end sizes
Verdict: The pick for a connection you would rather never revisit.
Eastman Braided Connector — Best Budget
Reliable and cheap for a quick swap. Still far safer than the old vinyl or PVC lines it replaces.
Braided stainless · value price · common end sizes
- Braided protection at the lowest price
- Common sizes stocked everywhere
- Easy DIY swap
- Lighter braid than heavy-duty
- Double-check the end fittings
- Replace it if the braid frays
Verdict: The cheap, safe upgrade from a rigid or rubber supply line.
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.
Fix the 12 Most Common Plumbing Problems Yourself — Free Plumber’s Handbook — including the 10-minute faucet fixes anyone can do
Step-by-step fixes for the 12 most common problems — and exactly when to call a pro. Free and instant, from a licensed plumber. Save hundreds on calls you didn’t need.