Flow meter/regulator for underfloor heating manifolds — compact, durable, and easy to maintain. Key benefits Ensure balanced room temperatures: accurately measures and regulates water flow so each heating zone receives the correct volume, reducing cold spots and uneven heating. Simple system diagnostics: integrated flow indicator provides clear readings from 0–5 L/min so you can confirm circulation and quickly identify underperforming loops. Lower maintenance effort: a removable sight glass allows fast cleaning of sediment and debris without disassembling the manifold, helping maintain consistent performance over time. Built to last in real installations: brass body and ABS components resist corrosion and wear in residential or commercial radiant heating systems. Important features Compatibility: designed for underfloor heating manifolds with G1/2 and G3/8 connections. Flow range: integrated indicator shows precise flow between 0 and 5 L/min. Construction: brass and ABS materials for durability and reliable performance. Serviceable design: detachable sight glass for easy access and cleaning to prevent blockages. How it solves common problems Balances heat: by regulating flow through each manifold channel, it prevents uneven heat distribution and improves occupant comfort. Prevents loss of performance: the sight glass lets you remove trapped sediment before it restricts flow, preserving system efficiency and reducing repair needs. Speeds troubleshooting: clear flow readings let you quickly spot closed or obstructed loops without specialized tools. Typical applications Residential multi-room underfloor heating: use on each manifold circuit to match flow to room size and radiators, improving comfort and reducing energy waste. Small commercial spaces and offices: helps maintain consistent temperatures across several zones supplied from a single manifold. System upgrades and maintenance: ideal when refurbishing older manifolds or adding flow control to new installations to prevent future sediment-related restrictions. What to expect Easy integration into standard manifolds with G1/2 and G3/8 fittings. Reliable flow monitoring between 0 and 5 L/min. Durable brass and ABS construction plus a removable sight glass for straightforward cleaning and long service life. Purchase this flow meter/regulator when you need accurate, serviceable flow control that improves comfort, simplifies maintenance, and fits standard underfloor heating manifolds.