Sta-Rite 2" Side-Mount 6-Position Multiport Valve w/ Unions, White | 18201-0300

2-inch multiport valve for pool filters, designed to control flow for sand and D.E. filtration systems. The dial-style valve mounts to side ports using included 2-inch PVC unions and a matching connecting pipe. It provides six selectable positions for common filter functions and a positive seal to prevent leakage between ports.

Sta-rite 18201-0300 Specifications

Key Features

• Six-position dial for common filter functions
• Includes connecting pipe to match side ports
• 2 in. PVC unions for filter-to-valve connection
• Positive seal to prevent leakage between ports
• Handle with locking pin for secure filter position

How It Works

Filter valves, replacement cartridges, D.E. grids and filter media keep an existing filter performing like new. Multiport and slide valves direct water for filter, backwash, rinse, waste and recirculate. Cartridges and grids are the filtering surfaces themselves, and media (sand, glass, zeolite or D.E.) does the filtering in sand and D.E. filters.

How to Choose the Right Filter Valve

• Cross-reference by the filter manufacturer and model number, then confirm dimensions: length, outside diameter, and top and bottom hole size for cartridges.
• For valves, match the filter tank thread or flange, port size and spacing.
• For media, follow the filter label for the type and pounds of media required.
• Replace grids or cartridges as complete sets for even flow.

If you are replacing an existing part, the fastest way to confirm compatibility is to match the brand and model number on the old equipment. Send us the model number or a photo of the label and our team will help confirm the 18201-0300 is the right fit before you order.

Installation and Safety

Turn off the pump and release all filter pressure before opening a tank or changing a valve. Follow the filter manufacturer's instructions for O-rings, clamp torque and media fill height. Never add D.E. to a sand or cartridge filter.

Maintenance Tips

• Clean cartridges with a garden hose and soak in filter cleaner periodically.
• Check valve spider gaskets for wear if water bypasses to waste.
• Replace cracked grids immediately; D.E. returning to the pool is a sign of a torn grid.
• Keep spare O-rings on hand.

What's Included

This listing is for the Sta-rite 18201-0300 as described in the specifications above. Plumbing, wiring, unions and accessories are not included unless they are listed in the product name or specifications.

Built for Homeowners, Pool Pros and Property Managers

• Homeowners: match your existing model number, then reach out if you want a second set of eyes on compatibility before you order.
• Pool service pros and builders: order quickly, track every shipment, and reorder common parts for your routes and builds.
• Property managers and commercial pools: standardize equipment across properties and plan replacements with help from our team.

White Paper

• Pentair 18201-0300 Brochure (PDF)
• Pentair 18201-0300 Parts List (PDF)
• Pentair 18201-0300 Product Document (PDF)
• Pentair 18201-0300 Owner's Manual (PDF)
• Pentair 18201-0300 Owner's Manual 2 (PDF)

Frequently Asked Questions About the Sta-rite 18201-0300

How do I find the right replacement cartridge?

Use the filter brand and model or the OEM cartridge part number, then verify dimensions on the product specifications.

How long do cartridges last?

Typically one to three seasons depending on bather load, cleaning frequency and water chemistry.

How much sand does my filter need?

Check the filter label or manual; it lists the type and pounds of media required.

Is this the genuine Sta-rite part?

Yes. It is brand new Sta-rite equipment (model 18201-0300) covered by the manufacturer warranty. Warranty terms vary by product and application; see the manufacturer documentation or ask our team.