Moen 3520 Moentrol Tub Shower Pressure Balancing Valve with Volume Control Sweat 1/2 Inch

Product Description

The Moen 3520 is a Moentrol tub and shower pressure balancing valve with volume control, designed for sweat (solder) connections. This brass valve is built for residential and commercial plumbing rough-in work where reliable water pressure control and temperature stability are required. It accepts a 1/2 inch sweat connection and features four ports, making it suitable for tub and shower combination installations. HVAC and plumbing professionals rely on pressure balancing valves like the Moen 3520 to maintain safe and consistent water temperature during pressure fluctuations, such as when toilets flush or other fixtures draw water simultaneously. The valve meets ASSE performance requirements, confirming it complies with industry-recognized safety and performance standards for shower valves. Built on the Moen MPACT common valve system, the 3520 allows future trim upgrades without disturbing the plumbing rough-in. That means a homeowner or contractor can swap out the trim style or finish at any point during or after construction without replacing the valve body. This saves both time and labor costs on future remodels. The cartridge type for this valve is the Moen 1225, a widely available and serviceable cartridge that plumbers are familiar with across many Moen platforms. The sweat connection style requires soldering the valve directly to copper supply lines, which is standard practice in new construction and full remodel plumbing projects. The brass construction provides durability and corrosion resistance in wet environments. Whether you are roughing in a new bathroom, replacing an aging valve body, or future-proofing a remodel, the Moen 3520 delivers a dependable, code-compliant solution with the flexibility of the MPACT system behind it.

• Moen MPACT common valve system allows future trim and finish upgrades without replacing the valve body or disturbing rough-in plumbing
• Pressure balancing design maintains stable water temperature when supply pressure changes elsewhere in the system
• Meets ASSE performance requirements for pressure balancing shower valves

Product Highlights

The Moen 3520 Moentrol pressure balancing valve combines code-compliant performance with long-term flexibility through the MPACT common valve platform. Its brass body, sweat connection, and four-port configuration make it a reliable choice for tub and shower rough-in installations.

Product Information

Standard Information

• Brand: MOEN
• Manufacturer Part Number: 3520

Technical Specifications

• Type: Pressure Balancing Valve
• Connection Size: 1/2 inches
• Connection Type: Sweat
• Number of Outlets: 4
• Material: Brass
• Cartridge Type: 1225