Monument
Monument 1515U Water Flow Weir Gauge 1515U
Model 1515U
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked 23 hours ago | £39.40 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 checked within the hour | £42.95£59.69 | In stock | Visit Tooled Up (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £44.26 | In stock | Visit Blueperry Tool & Builders Merchants (UK) (opens in a new tab) |
Prices exclude delivery. We may earn a commission if you buy through these links, which never affects the ranking above — it is always cheapest first.
Price history
Full price historyThis is the lowest price we have recorded. If you were waiting for a drop, this is it.
About this product
The Monument 1515U Water Flow Weir Gauge is a professional tool for measuring water flow rates before installing washing machines, boilers, showers and similar appliances, checking that adequate flow is available. It is also useful for diagnosing performance problems in existing systems, such as identifying whether a combi boiler or water heater needs de-scaling due to restricted flow. The gauge is made from durable plastic and includes a stainless steel mesh strainer that prevents turbulence, allowing for consistent, accurate readings. It features a dual-scale display, measuring flow rates from 2 to 25 litres per minute or 1 to 5 gallons per minute, giving flexibility depending on preferred units.
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