Pentair 155386-03 Semi Rigid Bag Filter 5 Micron Size 6

Product Description

The PENTAIR 155386-03 is a Size 6 semi-rigid polypropylene bag filter rated at 5 microns, designed for liquid filtration applications in industrial, commercial, and pool or process water systems. The semi-rigid construction maintains bag shape under flow, reducing the risk of collapse and ensuring consistent media contact across the full filter area. At 4 inches in diameter and 18.5 inches in length, it provides 1.75 square feet of effective filtration area. Licensed plumbers, water treatment techs, and pool service professionals install this filter in compatible bag filter housings as part of a multi-stage filtration train.

This filter is suited for residential and light commercial liquid filtration systems where particulate removal at 5 microns is required. It fits Size 6 bag filter housings commonly found in pool circulation systems, process water skids, and general industrial filtration setups. The polypropylene construction resists a broad range of aqueous solutions, making it appropriate for both clean water and mildly aggressive fluid streams. It is sold and packaged as a single unit.

Key Features

• 5 micron rating for effective fine particulate removal
• Semi-rigid polypropylene body maintains shape under flow, preventing bag collapse
• Size 6 form factor with 4 inch diameter and 18.5 inch length
• 1.75 square feet of filtration area for extended service intervals
• Polypropylene construction offers broad chemical compatibility with aqueous fluids

Compatibility

Designed as an OEM-style replacement or service filter for Size 6 bag filter housings used in liquid filtration systems.

Installation Notes

Installation should be performed by a qualified plumber or water treatment technician. Shut off flow and depressurize the filter housing completely before opening and replacing the bag. Inspect the housing o-ring or gasket at each service interval and replace if worn. Follow all applicable local plumbing codes when servicing pressurized filtration systems.