Blue-White Industries FLOWREAD R-320 Acrylic Flow Meter 20–120 GPM, 2" ID Pool Pipe, ±5% Accuracy

The Blue-White FLOWREAD R-320 is a machined acrylic inline flow meter that measures 20–120 GPM on 2" ID pool pipe to help you dial in a variable-speed pump accurately.

Knowing the actual flow through your pool plumbing is the simplest way to optimize filtration, protect equipment, and reduce wasted energy. The FLOWREAD R-320 installs on 2" ID PVC pipe and gives a clear, UV-stable readout with ±5% accuracy so you can set pump speeds with confidence. Built in the U.S. from machined acrylic and supplied with gasket and clamps, this meter is designed for outdoor pool systems and fast, tool-free installation without unions or pipe cutting.

How does the FLOWREAD R-320 help set a variable-speed pump correctly?

Variable-speed pumps save energy only when they run at the right flow for the pool system. The FLOWREAD provides a reliable flow-rate number so you can program pump speeds to match required turnover and head loss rather than guessing.

• Measures 20 to 120 gallons per minute, covering most residential needs.
• Accuracy of ±5% so pump programming is based on real data.
• Clear, UV screen-printed scale on both sides for easy viewing in bright light.
• Helps reduce runtime or lower pump speed without risking inadequate circulation.

What do I need to install the FLOWREAD on my pool plumbing?

The FLOWREAD mounts directly to 2" internal diameter PVC pipe using the included rubber gasket and stainless-steel clamps. No unions, adapters, cement, or pipe cutters are required, making it suitable for fast retrofit installations.

• Fits standard 2" ID PVC pipe — no primer or cement needed.
• Includes one machined acrylic flow meter, one rubber gasket, and two stainless-steel clamps.
• Clamp-on installation keeps the plumbing intact and reversible.
• Outdoor-rated UV printing allows installation in sunlight-exposed locations.

Will the FLOWREAD affect my system’s flow or filtration performance?

The FLOWREAD is designed to measure flow without restricting it. Its clear, non-intrusive body lets water pass freely so you get accurate readings while maintaining system efficiency.

• Non-restrictive design avoids added head loss from the meter.
• Accurate readings without altering pump load or filter stress.
• Milled acrylic construction resists pool chemicals and UV exposure.
• Helps prevent over-pumping (which can damage filters) and under-pumping (which can impair heaters).

Why choose this FLOWREAD model over other flow meters?

The R-320 balances accuracy, ease of installation, and outdoor durability at a price point suited to residential pool systems. It's purpose-built for the common 2" ID plumbing used on many pool returns and suction lines.

• Manufactured in the U.S. for consistent quality and support.
• UV-screened scale on both sides for visibility in bright conditions.
• Broad 20–120 GPM range covers most backyard pool applications.
• Simple clamp-on mounting avoids permanent plumbing changes.

Who is this product for? The Blue-White FLOWREAD R-320 is ideal for pool owners, service technicians, and installers who use variable-speed pumps and want an accurate, non-invasive way to verify flow rate. If you need to set pump speeds for energy savings, protect filters and heaters from improper flow, or simply confirm system performance, this clamp-on acrylic meter provides a quick, reliable measurement without specialized tools.