Product Overview

The Hayward SwimClear 425 sq. ft. Multi-Element Cartridge Filter W3C4030 is designed for powerful, high-capacity pool filtration with easy, no-backwash maintenance. Built for in-ground pool systems, this SwimClear filter uses four reusable cartridge elements to provide a large 425 sq. ft. effective filtration area, helping capture dirt, debris, and fine particles for clean, clear pool water.

The multi-element design provides excellent dirt-holding capacity and extended filter cycles, while the durable reinforced co-polymer tank is built for long-lasting performance in demanding outdoor pool equipment environments. With full-flow internal plumbing, union connections, and a one-piece clamp assembly, the W3C4030 is made for efficient operation and easier service access.

Ideal For

Residential in-ground swimming pools
Large pool systems requiring high-capacity cartridge filtration
Pool owners upgrading from sand or DE filters
Customers looking for no-backwash maintenance
Systems needing strong flow and large dirt-holding capacity
Replacement for Hayward C4030 / W3C4030 SwimClear filter systems

Key Features

425 sq. ft. Multi-Element Filtration

The large filtration area provides strong dirt and debris capture, helping maintain clear water while extending time between cleanings.

Four-Cartridge Quad-Cluster Design

The SwimClear W3C4030 uses four reusable cartridge elements arranged in a cluster for high dirt-holding capacity and efficient filtration.

No Backwashing Required

Cartridge filtration eliminates the need for backwashing, helping conserve water and simplify routine pool maintenance.

Durable Reinforced Co-Polymer Tank

The filter tank is built from strong, corrosion-resistant reinforced co-polymer material designed for long service life.

Low-Restriction Hydraulic Design

SwimClear filters are designed for excellent hydraulic performance, supporting strong water flow and efficient pool circulation.

One-Piece Clamp Assembly

The heavy-duty one-piece clamp securely fastens the tank while allowing quick access to the internal cartridge elements for cleaning and service.

2" Full-Flow Internal Plumbing

Full-flow internal plumbing helps reduce flow restriction and supports efficient system performance.

Union Plumbing Connections

PVC union couplings provide convenient installation and service access, with compatibility for 2" or 2-1/2" piping.

Rapid-Release Manual Air Relief

The manual air relief valve helps release trapped air from the system quickly and safely.

Large Integral Drain

The full-size drain allows faster tank draining and easier service or winterization.

Benefits

The Hayward W3C4030 is a strong choice for pool owners who want the performance of large-capacity cartridge filtration with less routine maintenance than traditional backwash filters. Because it does not require sand, DE powder, or backwashing, the filter can help reduce water waste and simplify pool care.

With its 425 sq. ft. filtration area, four-cartridge design, and high-flow plumbing, this filter is well suited for larger residential in-ground pools where water clarity, longer filter cycles, and easy service access are priorities.

Specifications

What’s Included

Hayward W3C4030 SwimClear filter tank
Four cartridge elements
One-piece clamp assembly
Top manifold assembly
PVC union connections
Pressure gauge
Rapid-release manual air relief valve
Integral drain

Customer-Facing Q&A

Does this filter include the cartridges?

Yes. The Hayward W3C4030 includes the four cartridge elements needed for operation.

What replacement cartridges does this filter use?

The complete replacement cartridge pack is Hayward CX880XREPAK4. The individual replacement element is Hayward CX880XRE.

Does this filter require backwashing?

No. The W3C4030 is a cartridge filter and does not require backwashing. Remove and rinse the cartridges when cleaning is needed.

Is this a sand or DE filter?

No. This is a cartridge filter. It does not use sand or DE powder.

How many cartridges are inside?

This model uses four cartridge elements in a Quad-Cluster configuration.

What is the flow rate?

Hayward SwimClear multi-element filters in this class are commonly listed with a 122 GPM public design flow rate and 150 GPM residential design flow rate.

What plumbing size does this filter use?

The PVC union coupling connection accepts 2" or 2-1/2" piping, with 2" full-flow internal plumbing.

Is this filter for in-ground pools?

Yes. The Hayward W3C4030 is designed for residential in-ground pool applications.

Does it include a pressure gauge?

Yes. A pressure gauge is included.