Pleatco ULTRA-A8-PAK4 + Aladdin O-524-BAGGED O-Ring Bundle | ULTRA-A8-PAK4+O-524-BAGGED

Pleatco ULTRA-A8-PAK4 + Jandy CL/CV 340 Tank O-Ring Bundle | ULTRA-A8-PAK4+O-524-BAGGED

Service bundle for Jandy CL/CV 340 cartridge filters: Pleatco ULTRA-A8-PAK4 4-pack cartridges plus Jandy R0357800 / Aladdin O-524 tank O-ring to restore flow and clamp sealing.

Features

• Built for Jandy CL340 / CV340 cartridge filters (A0557900 / PJAN85 footprint)
• ULTRA-A8-PAK4 uses Pleatco Ultra media with PurePleat, point-bonded fabric & Free-Flow core
• Each cartridge approx. 7.125" diameter × 26.94" length; 3" open top and bottom; ~85 sq ft
• Replaces Jandy A0557900 and aftermarket PJAN85, C-7459, FC-0800 equivalents
• O-524 tank O-ring replaces Jandy R0357800 for CL/CV/DEL/DEV tank lids
• O-ring dimensions around 21-15/16" ID × 23" OD × 9/16" cross-section

Description

This bundle is the straight answer for a Jandy CL/CV 340 that’s running high pressure or leaking at the band. The Pleatco ULTRA-A8-PAK4 cartridge pack is a direct upgrade over standard PJAN85 elements, with Ultra media designed for better dirt holding and lower restriction. The Aladdin O-524 tank O-ring is the correct replacement for Jandy R0357800, sealing the lid and body under the clamp band so you aren’t fighting air leaks or weeping after every cleaning.

Replace the media and the gasket together and you’ll see more stable pressure, better flow, and fewer nuisance leaks.

Pro Tip

Change all four cartridges at the same time—don’t mix new and old in a CL/CV 340 tank. Before installing the new O-ring, clean the groove and tank lips, then lube the gasket lightly and seat it without twisting. Tighten the band evenly, bleed air on restart, and re-check the clamp once the filter is at normal operating pressure.

Related Parts

• Pleatco PJAN85-PAK4 Standard Cartridge Set | PJAN85-PAK4
• Jandy R0357800 Tank O-Ring Only | O-524-BAGGED
• Magic Lube® PTFE O-Ring Lubricant | 630

Technical Specifications

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Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.