Product Overview

The Pentair Triton C-3 Commercial Sand Filter provides high-capacity filtration for commercial pools and professionally designed large residential installations. Its multi-diffuser system distributes water across the sand bed to support consistent debris capture and longer filtration cycles. A one-piece fiberglass-reinforced tank and large flanged connections make it a practical choice for demanding equipment installations. Pool Supply Depot offers this black, side-mount filter for contractors, facility operators, and owner-builders coordinating complete filtration projects.

Ideal For

Hotel and community pool filtration, large residential equipment upgrades, and engineered tandem installations where multiple filters are needed to meet the project’s circulation requirements.

Key Features

• Multi-diffuser construction helps maintain a level sand bed and distribute incoming water evenly.
• One-piece fiberglass-reinforced tank provides strength for commercial pool environments.
• Standard 3-inch flanged connections accommodate compatible commercial plumbing systems.
• An 8-inch access opening and full 2-inch drain simplify media access and drainage.

Benefits

Longer filtration cycles can reduce cleaning interruptions. Backwashing removes accumulated debris without routine cartridge removal. Tandem installation capability provides flexibility when a professionally designed system requires multiple filtration vessels.

Compatibility

Confirm pump output, flange configuration, valve arrangement, and available space before ordering. This model is not a universal replacement for filters with 2-inch threaded connections. Operating flow must match the complete system design, not simply the filter’s maximum rating.

For replacement projects, compare inlet and outlet elevations and backwash discharge capacity before assuming existing plumbing can be reused without any modification.

Installation or Upgrade Context

Pentair requires installation by a qualified professional. Provide a suitable mounting surface and adequate maintenance clearance. Never loosen the closure or service the filter while pressurized.

What’s Included

Filter assembly without a control/backwash valve. Arrange the correct valve or manifold, filtration media, circulation pump, and installation plumbing separately with your installer.

Specifications

Customer Q&A

Is a backwash valve included?
No. Select a compatible valve or manifold arrangement for the filter’s connections and your circulation system.

Why are two flow rates listed?
They represent different filtration rates. Your installer should select the appropriate operating flow based on project requirements rather than automatically using the maximum.

What filtration sand does it use?
Pentair specifies No. 20 standard silica filter sand. Follow the manufacturer’s media-depth requirements as well as the approximate loading weights.

When should it be backwashed?
During regular operation, Pentair specifies a 30% flow reduction from the clean baseline, or a 10 PSI pressure increase when no flow meter is installed.