Product Overview

The Pentair Triton C-3 Series TR140C-3 Commercial Sand Filter | 140342 is a high-capacity fiberglass side-mount sand filter engineered for demanding commercial swimming pool applications requiring dependable filtration, high flow capability, and long service life.

Featuring a large 36-inch fiberglass tank, 7.06 square feet of effective filtration area, and standard 3-inch flanged connections, the TR140C-3 is designed to handle the higher circulation requirements found in hotels, resorts, schools, municipal pools, fitness facilities, aquatic centers, apartment communities, and other commercial installations.

Pentair's multiple-diverter internal design allows the Triton C-3 series to operate at filtration rates up to 20 GPM per square foot, providing a maximum rated flow of approximately 141 GPM. When engineered around a traditional 15 GPM per square foot commercial filtration rate, the TR140C-3 operates at approximately 106 GPM.

The durable fiberglass-reinforced tank features Pentair's proven construction and a UV-resistant exterior designed for long-term use in demanding equipment environments.

Valve is not included and must be purchased separately.

Key Features

• Commercial-grade sand filtration system
• 36" diameter fiberglass tank
• 7.06 sq. ft. effective filtration area
• Flow capability up to 141 GPM
• Approximately 106 GPM at 15 GPM/sq. ft.
• Standard 3" flange connections
• Maximum operating pressure of 50 PSI
• Full 2" drain
• Large 8" tank opening for easier sand-bed access
• Multiple internal diverters for increased filtration capacity
• Durable fiberglass-reinforced construction
• UV-resistant exterior finish
• Black commercial tank
• Designed for high-capacity commercial pools
• Valve sold separately

Product Specifications

High-Capacity Commercial Filtration

The Triton C-3 series is designed for applications where standard residential filtration equipment may not provide enough flow or media capacity.

The TR140C-3's 7.06-square-foot filtration area provides the capacity required for larger bodies of water while maintaining effective sand filtration.

At a 15 GPM per square foot commercial filtration rate, the unit provides approximately:

• 106 GPM flow
• 38,160 gallons in 6 hours
• 50,880 gallons in 8 hours

At its maximum listed filtration rate of 20 GPM per square foot, flow increases to approximately 141 GPM.

Sand Media Requirements

The TR140C-3 can be configured using approximately 925 pounds of filter sand.

Pentair also specifies an alternate layered-media configuration using:

• 650 lb filter sand
• 275 lb pea gravel

Proper filter-grade media should always be used according to Pentair installation instructions and the project's engineered filtration requirements.

3-Inch Flanged Connections

Unlike smaller Triton models, the C-3 series uses standard 3-inch flange connections designed for high-flow commercial plumbing systems.

This configuration helps reduce hydraulic restriction in larger circulation systems.

Because 140342 is supplied without a valve, the appropriate valve and plumbing configuration must be selected separately for the installation.

Ideal For

The Pentair TR140C-3 is an excellent filtration solution for:

• Hotels and resorts
• Municipal swimming pools
• Schools and universities
• Recreation centers
• Apartment and condominium pools
• Fitness centers
• Commercial spas
• Aquatic facilities
• Large residential pools requiring commercial filtration

Frequently Asked Questions

What is the maximum flow rate of the TR140C-3?

Pentair rates the filter up to approximately 141 GPM at 20 GPM per square foot.

Why is this filter sometimes listed as 106 GPM?

106 GPM is the flow rate at the traditional commercial filtration rate of 15 GPM per square foot. Both ratings can be correct depending on the design filtration rate.

How much water can it turn over in 8 hours?

At 106 GPM, it provides an 8-hour turnover of approximately 50,880 gallons.

How much sand does the filter require?

The TR140C-3 requires approximately 925 pounds of filter media when using all sand.

Can pea gravel be used?

Yes. Pentair also specifies approximately 275 lb of pea gravel with 650 lb of filter sand.

Does the 140342 include a valve?

No. The valve is sold separately.

What size plumbing connection does it use?

The C-3 model uses 3-inch flanged connections.

What is the maximum operating pressure?

The maximum rated operating pressure is 50 PSI.

Is this a residential or commercial filter?

The TR140C-3 is primarily designed as a commercial high-capacity sand filter, although it can also be used in appropriately engineered large residential applications.