Unicel T-380 Replacement Filter for Harmsco ST | 6 Sq. Ft.

Overview

The Unicel T-380 is a pleated polyester cartridge filter element configured for the Harmsco ST series, providing 6.0 sq ft of filtration area through a nonwoven polyester media pack with nominal 20-micron filtration efficiency. Construction features molded end caps with center-hole top and closed bottom geometry consistent with the Harmsco ST housing seat profile, supported on a perforated rigid polymer core sized to the standpipe-mount configuration of the ST/6 platform. The element is rated for continuous service at standard residential pool operating pressures and temperatures to 104°F, with end cap adhesive formulated for resistance to chlorinated and brominated water chemistry. Compact filtration area paired with the Harmsco standpipe seating geometry delivers reliable particulate capture in low-volume circulation systems and specialty filtration housings.

Service interval recommendation: rinse every 4–6 weeks under standard residential bather load, with replacement triggered at ΔP ≥ 8 PSI above clean-filter operating baseline or on an annual calendar cycle, whichever occurs first. Chemical soak with dilute TSP or enzyme cleaner is recommended every 3–6 months to remove oil and surfactant residue that resists water rinsing. Chemical compatibility: continuous service tolerated at ≤ 10 ppm free available chlorine or equivalent bromine concentrations; muriatic acid soak at 1:20 dilution is compatible for calcium scale removal, with maximum 20-minute exposure followed by thorough fresh-water rinse prior to reinstallation. Inspect end cap bond and pleat integrity at each service interval; replace on visible fabric degradation, pleat collapse, or core deformation. Standard Unicel 90-day manufacturing defect warranty applies through authorized distribution.

What's Included

Your order includes the selected quantity of replacement pool filter cartridges. Each unit is individually inspected for quality before shipping.