Covers pipe sizes up to 2" and offers a genuine DIY install path via SharkBite fittings. Neither of those come cheap, and the pricing itself isn't a single number — here's what actually determines what you'll pay.
The widest pipe compatibility and the only genuinely DIY-installable in-line shut-off valve in this guide, via its SharkBite fitting option. It's also the most expensive system we've reviewed, with pricing that varies by pipe size rather than one flat number, and the only one paired with an optional subscription. Best for larger homes, unusual pipe sizes, or multi-property owners — not the simplest or cheapest path to automatic shut-off.
Not sure which system is right for you? See the full head-to-head comparison — Moen Flo vs. YoLink vs. Phyn Plus.
StreamLabs Control is not currently available through Amazon. It's a real, active product, sold directly by StreamLabs at streamlabswater.com for $999 — but StreamLabs doesn't offer a direct affiliate program to content creators, so we have no way to link that purchase path here.
Amazon listings do come back in stock, so we've kept the original Amazon link below in case that happens. In the meantime, we've added Moen Flo and YoLink alongside it — two systems we've separately reviewed and genuinely recommend, not a substitute pushed in its place.

StreamLabs Control's Amazon listing is currently unavailable — here's that link plus two systems we separately recommend:
Affiliate links — we earn a commission at no extra cost to you. Full disclosure
StreamLabs Control installs directly into your main water line and uses the same fundamental approach as the Moen Flo — ultrasonic sound waves measuring flow through the pipe. Where it genuinely differs is in the range of pipes it's built to fit, and how you're allowed to connect it.
Most residential systems, including the Moen Flo and Phyn Plus, are built around a standard 3/4" supply line — the size most single-family homes use. StreamLabs Control is sold in configurations up to 2", which matters for larger homes, older properties with wider mains, or small multi-unit buildings that a 3/4"-only system simply can't fit.
That range is also exactly why the price isn't one number. Each pipe size and fitting type (FNPT threaded vs. SharkBite push-fit) is effectively a different product listing, so the real cost of "a StreamLabs Control" depends entirely on which one your home actually needs.
Every in-line shut-off valve we've reviewed — Moen Flo, Phyn Plus, and StreamLabs Control's own standard connection — recommends professional installation. StreamLabs is the only one of the three that offers a genuine alternative: a SharkBite push-fit fitting option for compatible pipe types.
Standard threaded fitting, works with any pipe type. StreamLabs itself estimates about 60 minutes of work, and recommends a licensed plumber for this connection — matching the install profile of the Moen Flo and Phyn Plus.
Plumber RecommendedFor compatible pipe types — PEX, copper, CPVC — the SharkBite version pushes onto the pipe directly. No soldering, no tools, no plumber. This is the version to look for if a DIY install is the priority.
Genuinely DIYSharkBite connections work with PEX, copper, and CPVC — but not every pipe type or every size. StreamLabs specifically notes the 1-1/4" SharkBite fitting is not approved for PE-RT pipe. If you're not certain what your supply line is made of, this is worth confirming before ordering, the same way meter compatibility matters before buying a Flume.
StreamLabs Control is the most expensive system in this guide, and unlike the others, the device price itself moves depending on your pipe size and fitting choice.
Varies by pipe size (3/4"–2") and fitting (FNPT or SharkBite)
Typical US licensed plumber rate — not needed for SharkBite installs
Full range, FNPT + plumber at the high end, SharkBite DIY at the low end
Every other system in this guide has one price, or close to it. StreamLabs Control genuinely doesn't — the size and fitting you need determines which listing you're buying, and the difference between the smallest and largest configuration is substantial. Before comparing StreamLabs Control's price against the Moen Flo or Phyn Plus, confirm which specific size and fitting your home requires, not just the lowest number you saw advertised.
Your main supply line is wider than the standard 3/4" residential size, or you have an older property with non-standard plumbing.
You want to keep tabs on more than one unit or property from a single app, without being on-site.
Your pipes are PEX, copper, or CPVC, and you want a real shut-off valve without hiring a plumber to install it.
Not on Amazon right now — its Amazon listing is currently unavailable. It's sold direct from streamlabswater.com for $999. Amazon listings do come back in stock, so we've kept the original Amazon link live in case it returns, but as of this writing, the direct site is the only place to buy it.
This is the one place StreamLabs is genuinely more complicated than the other systems we've reviewed. It's sold under different listings by pipe size and fitting type — 3/4" through 2", FNPT threaded or SharkBite push-fit — and the price moves with that choice, roughly $700 on the low end up to $1,350 for larger sizes. Confirm the exact size and fitting your home needs before you buy; it's not one flat price the way Moen Flo or Phyn Plus is.
It depends on which fitting you choose. The standard FNPT threaded connection still recommends professional installation, similar to Moen Flo or Phyn Plus. StreamLabs also sells a SharkBite push-fit version for compatible pipe types (PEX, copper, CPVC) that genuinely doesn't require soldering or a plumber — check which one you're buying, because the install experience is very different between the two.
No — the hardware is a one-time purchase and the free "Standard" plan covers core leak alerts. StreamLabs also offers an optional "StreamPlus" tier at $5.99/mo or $59/yr that adds extended alert history, more saved locations, and email/SMS alerts. This is worth knowing because none of the other three systems we've reviewed (Moen Flo, Phyn Plus, YoLink) have any subscription at all, optional or otherwise.
StreamLabs' own marketing states installing Control may qualify you for up to a 10% reduction on household insurance — but their own FAQ is explicit that "eligibility and criteria are carrier-specific," meaning you need to confirm this directly with your own insurance agent or company. Treat the 10% figure as a possibility worth asking about, not a guarantee that applies to every policy.
Drip Detect is StreamLabs' name for its slow-leak detection — using continuous ultrasonic flow readings to catch small, ongoing water loss (a worn toilet flapper, a slow pinhole leak) that a simple on/off flow sensor might miss, working alongside its broader Smart Alerts system that learns your home's normal usage pattern to flag anomalies.
If you don't need pipe sizes above 1", this covers 3/4" and 1" with 3 sensors included, at less than StreamLabs Control's price floor.
A major global plumbing brand, at meaningfully less than StreamLabs Control, if your pipe is 1" or smaller.
No valve, no pipe-size complexity — just point-of-leak alerts, at a small fraction of StreamLabs Control's cost.
A main-line valve handles supply-side failures. These guides cover the leaks it does and does not reach:
StreamLabs is the premium, widest-compatibility option — these help you confirm it's the right fit for your specific pipes and budget.
The standard 3/4" in-line alternative — lower cost, one flat price, no subscription.
AI pressure-wave detection, single-device install, no subscription.
The budget, monitoring-only alternative if you don't need automatic shut-off at all.
Our full buying guide, comparing every system we've reviewed side-by-side.
The most configurable in-line shut-off system we've reviewed — and the most expensive. Its Amazon listing is currently unavailable; we've included two systems we separately recommend below.
Affiliate links — we earn a commission at no extra cost to you.
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