Harmsco Cartridge [ST/155, 155 Sq Ft, 7-3/4" Dia, 28-1/2" L] (ST/155)

Harmsco Filters – Commercial Filtration Systems & Cartridges

Harmsco Filters is a trusted manufacturer of high-performance filtration products used in pool, spa, commercial, industrial, and municipal water applications. The company is known for its durable filter housings, cartridges, and filtration systems designed to deliver excellent water clarity and dependable flow performance. Harmsco products are often used where strong filtration capacity and long-term reliability are essential.

Harmsco Filters specializes in filter housings, filter cartridges, high-capacity filtration systems, and commercial water filtration equipment. Their products are designed to deliver strong flow performance and dependable water clarity in demanding applications.

What truly distinguishes Harmsco Filters is its focus on engineering filtration solutions that can handle demanding water conditions. Effective filtration helps protect equipment, improve water quality, and reduce maintenance challenges, and Harmsco products are built with those priorities in mind. For commercial facilities, service professionals, and pool owners who need reliable filtration performance, Harmsco Filters remains a trusted name.

To choose the correct part, match the filter model, cartridge dimensions, end cap style, micron rating when available, and system flow requirements. Confirming measurements and part numbers helps ensure proper fit, water flow, and filtration performance.

At Bath & Spa Parts Online, we carry a wide selection of Harmsco Filters pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.