Unicel C-4332 Replacement Filter for Sonfarrel 220042 | 32 Sq. Ft.

Overview

The Unicel C-4332 is a pleated polyester cartridge filter element providing 32.0 sq ft of effective filtration area through a Reemay nonwoven polyester media pack on a rigid PVC core. Dimensional specifications: 4.94-inch OD, 2.06-inch ID, 9.25-inch length, with closed-top and open-bottom ABS injection-molded end caps configured to seat in the Sonfarrel 220042 single-cartridge canister family. Nominal filtration efficiency is rated at 20 microns under standard test conditions. The element is rated for continuous service to 104°F and operating pressures to 25 PSI, with end cap adhesive UV-stabilized for standard outdoor installation. Rated flow capacity is suited to residential and light commercial circulation systems matched to the 32 sq ft media area at clean-filter ΔP.

Service interval recommendation: residential installations — replacement triggered at ΔP ≥ 8 PSI above clean-filter operating baseline, or on an annual calendar cycle, whichever occurs first. Rinse every 4–6 weeks; chemical soak with TSP or commercial enzyme cleaner every 3–6 months to displace bound oils and surfactants. Muriatic acid wash at 1:20 dilution is compatible for calcium scale remediation (20-minute maximum exposure, thorough freshwater rinse before reinstallation); ABS end cap construction tolerates standard acid wash procedures without adhesive degradation. Chlorine tolerance: continuous service at ≤ 10 ppm free available chlorine; bromine compatible without restriction. Inspect O-ring and housing seat at each service cycle and verify post-installation pressure against documented clean baseline. Standard Unicel 90-day manufacturer defect warranty applies through authorized distribution channels.

What's Included

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