CMP Heavy-Duty Jandy CL/CV Cartridge Filter Top Manifold, White | 25357-850-000

The CMP 25357-850-000 Heavy-Duty J-Style Cartridge Filter Top Manifold is an aftermarket replacement component designed for compatible Jandy CL and CV Series cartridge pool filters. Manufactured by Custom Molded Products (CMP), this reinforced white manifold replaces Jandy OEM part number R0357600.

Featuring a durable, heavy-duty construction and an integrated air relief vent, the CMP replacement manifold eliminates the need for the original separate internal air relief tube while maintaining proper cartridge alignment and filtered water flow.

Designed for the Jandy CL340, CL460, CL580, CV340, CV460, and CV580 cartridge filters, this manifold provides a practical alternative to the original Jandy assembly.

Product Features

• Heavy-Duty Construction: Reinforced molded design offers increased durability compared with standard replacement manifolds.
• Direct OEM Replacement: Replaces Jandy R0357600 manifold assemblies.
• Integrated Air Relief Vent: Built-in vent eliminates the need for a separate internal air relief hose.
• Jandy CL Series Compatibility: Fits CL340, CL460, and CL580 cartridge filters.
• Jandy CV Series Compatibility: Fits CV340, CV460, and CV580 cartridge filters.
• Four-Cartridge Configuration: Designed to position and connect the cartridges in compatible Jandy filter assemblies.
• Standpipe O-Ring Included: Includes the sealing O-ring for the manifold connection.
• White Finish: Durable molded plastic construction.

Product Specifications

• Manufacturer: Custom Molded Products (CMP)
• Manufacturer Part Number: 25357-850-000
• Distributor Part Number: CTM-051-5030
• Product Type: Cartridge Filter Top Manifold
• Design: Heavy-Duty J-Style
• Color: White
• Material: Molded Plastic
• OEM Replacement: Jandy R0357600
• Additional OEM Reference: R03576000
• Compatible Filter Series: Jandy CL / CV
• Air Relief: Integrated Vent
• Standpipe O-Ring: Included
• Approximate Product Weight: 1.85 lb
• Shipping Dimensions: 14" x 10" x 5"
• UPC: 849640004432
• Package Quantity: 1 Manifold Assembly

Compatible Jandy Cartridge Filters

The CMP 25357-850-000 is designed for the following Jandy cartridge filter models:

• Jandy CL340: 340 Sq. Ft. Cartridge Filter
• Jandy CL460: 460 Sq. Ft. Cartridge Filter
• Jandy CL580: 580 Sq. Ft. Cartridge Filter
• Jandy CV340: 340 Sq. Ft. Cartridge Filter
• Jandy CV460: 460 Sq. Ft. Cartridge Filter
• Jandy CV580: 580 Sq. Ft. Cartridge Filter

Compatibility Notice: This manifold is designed for the listed Jandy CL and CV cartridge filters. It is not a universal replacement for all Jandy cartridge filters. Verify your filter model before ordering.

Heavy-Duty Reinforced Construction

CMP manufactures its heavy-duty replacement manifolds with reinforced construction designed to improve durability and resistance to cracking.

Cartridge filter manifolds can experience stress during cartridge removal, installation, and routine servicing. The CMP heavy-duty design provides a durable replacement for damaged original manifolds.

Integrated Air Relief Vent

One of the main advantages of the CMP 25357-850-000 is its built-in air relief vent.

Unlike the original manifold configuration that uses a separate internal air relief tube, the CMP manifold incorporates the vent directly into the assembly.

This design reduces the number of separate internal components and simplifies filter maintenance.

Important: The integrated internal vent does not replace the filter tank's external manual air relief valve. Always follow the manufacturer's pressure relief procedures before opening the filter.

What Does a Cartridge Filter Top Manifold Do?

The top manifold is an important internal component of a multi-cartridge swimming pool filter.

It connects the upper openings of the filter cartridges and channels filtered water into the outlet standpipe.

A properly functioning manifold helps maintain correct cartridge positioning and ensures that water flows through the intended filtration path.

Cracks or damage to the manifold can allow unfiltered water to bypass the cartridges, potentially reducing filtration performance.

When to Replace Your Cartridge Filter Manifold

Replacement may be necessary when the original manifold becomes cracked, warped, or physically damaged.

• Visible cracks in the manifold body.
• Broken or damaged cartridge connection ports.
• Water bypassing the filter cartridges.
• Debris returning to the swimming pool.
• Damaged standpipe connection.
• Warped or distorted manifold.
• Damage discovered during cartridge replacement.
• Original manifold no longer fits securely.

Troubleshooting: Debris returning to the pool can also result from damaged filter cartridges, improperly seated cartridges, or other internal filter problems. Inspect the complete assembly before replacing parts.

CMP 25357-850-000 vs. Jandy R0357600

The CMP 25357-850-000 is designed as an aftermarket alternative to the genuine Jandy R0357600 manifold.

• CMP 25357-850-000: Heavy-duty J-style replacement manifold with integrated internal air relief vent.
• Jandy R0357600: Genuine OEM replacement manifold for compatible Jandy CL and CV cartridge filters.

Both are intended for compatible Jandy cartridge filter installations, but the CMP version incorporates a different internal air relief design.

Related Jandy Filter Parts at Aqua Pool Supply

Complete your filter repair with these related replacement products available from Aqua Pool Supply.

• Jandy R0357600 – Genuine OEM Cartridge Filter Manifold – Original Jandy manifold assembly for compatible CL and CV Series cartridge filters.
• Jandy R0358000 – Pro Series Filter O-Ring Replacement Kit – Replacement sealing components for compatible Jandy cartridge filter assemblies.
• Jandy R0554600 – 115 Sq. Ft. Replacement Filter Cartridge – Individual cartridge for compatible Jandy CL460 and CV460 filtration systems.
• Unicel C-7468 – 115 Sq. Ft. Replacement Filter Cartridge – Aftermarket filter cartridge for compatible Jandy CL460 and CV460 filters.

Jandy Cartridge Filter Parts Diagrams

Need additional replacement components? Browse Aqua Pool Supply's Jandy Cartridge Filter Parts & Diagrams to find replacement manifolds, cartridges, tank O-rings, air relief components, and other filter parts.

Installation Instructions

1. Turn off the swimming pool circulation pump.
2. Disconnect power or disable automatic equipment operation to prevent unexpected startup.
3. Open the filter's manual air relief valve and completely relieve internal pressure.
4. Verify that the filter pressure gauge indicates zero.
5. Open the filter tank according to Jandy's service instructions.
6. Carefully remove the existing top manifold from the filter cartridges.
7. Inspect the cartridge openings and outlet standpipe for damage.
8. Remove debris from the sealing surfaces.
9. Verify that CMP 25357-850-000 matches the original manifold configuration.
10. Install the supplied standpipe O-ring in the correct position.
11. Position the replacement manifold over the filter cartridges.
12. Ensure all cartridge connections and the standpipe are seated properly.
13. Reassemble the filter tank according to the manufacturer's instructions.
14. Restore circulation and purge air from the filter using the approved procedure.
15. Inspect the system for leaks and verify normal filtration.

Installation and Maintenance Recommendations

• Inspect all filter cartridges for cracks, damaged end caps, or torn media.
• Verify that the manifold seats correctly on all four cartridges.
• Inspect the outlet standpipe and sealing surfaces for damage.
• Replace damaged O-rings when servicing the filter.
• Use only manufacturer-approved O-ring lubricants when lubrication is recommended.
• Never force the manifold onto misaligned cartridges.
• Never open a cartridge filter while the system is pressurized.

Package Contents

Includes: One (1) CMP 25357-850-000 Heavy-Duty White J-Style Cartridge Filter Top Manifold with Integrated Air Relief Vent and Standpipe O-Ring.

Not Included: Filter cartridges, filter tank, tank clamp, external air relief valve, and other replacement components.

Compatibility: Designed for Jandy CL340, CL460, CL580, CV340, CV460, and CV580 cartridge filters.

OEM Cross-Reference: Jandy R0357600 / R03576000.

Safety: Always turn off the pump and completely relieve filter pressure before opening or servicing the filter tank.