{"product_id":"unicel-t-380r","title":"Unicel T-380R Replacement Filter for Harmsco ST | 6 Sq. Ft.","description":"\u003cdiv class=\"pz-pdp\"\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Unicel T-380R is a pleated polyester cartridge filter element engineered for Harmsco commercial water filtration applications, providing 6.0 sq ft of filtration area in a compact, high-strength format suitable for industrial and light commercial circulation systems. Media construction is Reemay-grade nonwoven polyester pleated around a perforated rigid core for axial stability under sustained operating pressure. End cap construction is molded polymer with concentric sealing geometry matched to Harmsco ST-series housing seats. The element is rated for continuous service in commercial filtration duty cycles where consistent micron-rated particulate removal and pressure stability are required. Operating pressure capability and high-strength core specification support service in pump-driven circulation loops exceeding typical residential PSI ranges.\u003c\/p\u003e\n\u003cp\u003eService interval recommendation: commercial installations on 30–90 day rotation depending on bather load, turbidity inlet conditions, and turnover rate; pressure-differential replacement trigger at ΔP ≥ 8–10 PSI above clean operating baseline. Maintain filter replacement log documenting date, technician ID, and part number for compliance with applicable health department reporting requirements. Chemical compatibility: polyester media tolerates continuous service at ≤ 10 ppm free available chlorine; compatible with muriatic acid soak at 1:20 dilution (20-minute maximum exposure) for calcium scale removal; enzyme cleaner compatible without restriction. Rinse thoroughly and verify post-installation pressure against clean baseline before returning system to service. Standard Unicel 90-day manufacturing defect warranty applies through authorized distribution.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eYour order includes the selected quantity of replacement pool filter cartridges. Each unit is individually inspected for quality before shipping.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":42315916247086,"sku":"UNFT380R","price":9.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0016\/3453\/3422\/files\/1_857b63b4-9145-462a-b902-a02c170f88e0.png?v=1778969505","url":"https:\/\/poolzilla.com\/products\/unicel-t-380r","provider":"Poolzilla","version":"1.0","type":"link"}