Product Overview

Replace a damaged upper housing on a compatible Pentair Sta-Rite System:3 filter with this genuine 25-inch upper tank half kit. It gives you the specified replacement shell while leaving serviceable lower tank components and filter internals in place.

Use it for a targeted repair after a qualified pool professional has inspected the complete filter assembly. Check your filter’s identification label before ordering, then have the installer confirm that the lower shell, sealing surfaces, tank seal, and clamp hardware are suitable for continued service.

• Compatible models: Fits the listed 25-inch System:3 models S8M150, S8M500, S8D110, and S8S70, covering designated cartridge, D.E., and sand filters.
• Upper housing only: Includes one upper tank half; the lower tank and internal filtration components are separate.
• Factory labeling: Decals and labels are included to retain the filter’s identification and safety information.
• Black finish: Matches the listed replacement tank configuration.
• Size and weight: The nominal tank size is 25 inches, and the listed product weight is 29 lb. The 25-inch figure identifies the tank size, not the shipping carton.
• Shipping dimensions: The carton measures 31 × 31 × 26 inches.

The tank sealing ring, clamps, valve-and-gauge assembly, and filter elements are not included. Have the installer inspect the tank seal and replace it if worn, damaged, or unsuitable for reuse. Smaller 21-inch System:3 filters need a different upper tank kit.

Pool filters operate under pressure. Never loosen clamps or open the housing while pressurized, and do not operate a filter with a cracked or damaged tank. Follow the manufacturer’s shutdown, pressure-release, assembly, and startup instructions.