Pentair 155053-43 Pleated Cartridge Filter 50 Micron

Product Description

The PENTAIR 155053-43 is a pleated cartridge filter designed for residential and light commercial plumbing filtration systems. Built from non-woven polyester media, it captures sediment at a 50 micron rating, making it well suited for whole-house filter housings and point-of-entry applications where sediment control is the primary concern. The cartridge measures 4.5 inches in outside diameter and 9.75 inches in length, fitting standard 10-inch filter housings. Its pleated construction increases surface area compared to wound or melt-blown alternatives, extending service intervals between replacements. Licensed plumbers and water treatment technicians are the primary installers.

This cartridge is used in plumbing filtration systems handling cold and warm water service, rated for operating temperatures from 40 degrees F to 145 degrees F. Typical installations include whole-house sediment pre-filters, well water systems, and irrigation supply lines where coarse particulate loading is present. The 50 micron rating is appropriate for first-stage filtration ahead of finer filters or water treatment equipment.

Key Features

• Pleated non-woven polyester media for increased filtration surface area
• 50 micron rating targets sediment including sand, silt, and rust particles
• 4.5 inches OD fits standard 10-inch filter housings
• 9.75 inches length compatible with big-blue and standard slim-line housing styles
• Rated from 40 degrees F to 145 degrees F for cold and hot water service

Compatibility

Designed as an OEM-style replacement cartridge for standard 10-inch plumbing filter housings that accept a 4.5 inches outside diameter cartridge element.

Installation Notes

Installation should be performed by a licensed plumber following local plumbing code requirements. Shut off the water supply and relieve system pressure before opening the filter housing. Inspect the housing O-ring for wear and replace if needed before seating the new cartridge. Do not exceed the rated temperature or pressure specifications of the housing assembly.