Swimables Hayward-Style Top Mount Pressure Gauge

Swimables
SKU: SW-27-242 UPC: 810108820734
Regular price $112.95 Sale price$124.99you save $12.04
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Quick Facts
Air-Relief Valve Assembly
Pressure Gauge Included
DEX2420MAR2 Cross-Reference
Manual Air Release
Swimables Aftermarket Part
Key Benefits +
  • Combines manual air relief and pressure monitoring
  • Replaces a damaged compatible assembly
  • Provides the DEX2420MAR2 fitment reference
  • Avoids confusing a full assembly with a gauge alone
How to Use +
1 Confirm the filter model and DEX2420MAR2 assembly reference before ordering. Have a qualified pool professional shut down the circulation system and release all pressure before service. Follow the filter manual for the assembly's locking arrangement, inspection and installation. Have the technician verify correct assembly, air release and gauge operation before returning the system to use.
Specifications +

Brand: Swimables

Part Number: SW-27-242

Product Type: Manual air-relief valve assembly with pressure gauge

Industry Cross-Reference: Hayward DEX2420MAR2

Replacement Status: Aftermarket; not Hayward OEM

Included Components: Air-relief valve assembly and pressure gauge

Application: Compatible Hayward-style filter systems using DEX2420MAR2

UPC: 810108820734

Buy with Confidence from Benchmark Pool Supply +

Benchmark Pool Supply can help you identify the complete air-relief assembly your filter uses. Match SW-27-242 and the DEX2420MAR2 reference with the filter's parts diagram before purchase.

Buy with Confidence from Benchmark Pool Supply

  • Trusted pool professionals
  • 100% Genuine Manufacturer Parts Guaranteed
  • Shipping options for eligible products
Returns subject to product eligibility
Expert Product Support
Full Product Description +

Key Fit & Function

  • Hayward-Style Replacement Assembly – Designed to fit select Hayward-style cartridge and DE pool filters that use this air relief configuration

  • Complete Assembly Included – Combines a manual air relief valve and pressure gauge into one matched, ready-to-install unit

  • Restores Safe Filter Operation – Allows trapped air to be released from the filter tank before startup, reducing pressure risk

  • Accurate Pressure Monitoring – Integrated gauge provides clear, reliable filter pressure readings for proper maintenance timing

  • OEM-Equivalent by Swimables – Aftermarket replacement engineered to match original fit, threading, and performance

  • Prevents Leaks & Mismatched Parts – Replacing the full assembly ensures proper sealing and compatibility between valve and gauge

  • Simple Thread-In Installation – Typically installs by hand into the filter housing after relieving system pressure

  • Maintenance & Repair Solution – Ideal for cracked valves, leaking gauges, or inaccurate pressure readings

Safe pressure management is critical to the performance and longevity of any pool filtration system. The Swimables Hayward-Style Air Relief Valve Assembly with Pressure Gauge (SW-27-242) is a complete, heavy-duty replacement assembly designed to restore reliable air release and accurate pressure monitoring on Hayward-style pool filters.

This all-in-one assembly allows trapped air to be safely purged from the filter tank while delivering a clear, dependable pressure reading. If your existing air relief valve is sticking, leaking, or your pressure gauge is fogged, inaccurate, or broken, replacing the entire assembly ensures both functions work together correctly from day one.

Built to OEM-equivalent standards, the Swimables SW-27-242 is engineered for durability, chemical resistance, and secure sealing in demanding pool environments—making it a dependable alternative to factory-branded assemblies.


Integrated Air Relief and Pressure Monitoring

Air trapped inside a filter tank can reduce circulation efficiency and cause pressure fluctuations. This assembly allows air to be released during startup or servicing while the integrated gauge immediately confirms proper operating pressure.

Having both components combined eliminates mismatched parts and ensures accurate readings after every air purge.


Hayward-Style Compatibility and Secure Fit

The SW-27-242 is designed to replace Hayward-style air relief valve and pressure gauge assemblies used on select cartridge and DE filter systems. Proper threading and sealing surfaces help prevent leaks and ensure a tight, reliable installation.

Using the correct valve assembly protects the filter tank, plumbing, and internal filter elements from unnecessary stress.


Built for Long-Term Outdoor Use

Pool filter components operate under constant pressure and exposure to chemicals and weather. This assembly is constructed from durable, chemical-resistant materials designed to withstand long-term outdoor installation.

The pressure gauge features clear markings for quick visibility, helping pool owners and technicians easily monitor filter condition and maintenance intervals.


Why Replacing the Full Assembly Matters

Replacing only one component can leave worn parts behind. Installing the complete assembly restores full, dependable operation in one step.

  • Safely releases trapped air from the filter tank

  • Provides accurate pressure readings

  • Helps prevent leaks and pressure loss

  • Protects filter housing and circulation equipment


Product Specifications

Specification Details
Product Name Swimables Hayward-Style Air Relief Valve Assembly with Gauge
Part Number SW-27-242
SKU SW-27-242
Manufacturer Swimables
OEM Style Hayward-style compatible
Components Included Air relief valve and pressure gauge
Function Air release and pressure monitoring
Installation Threaded filter-top assembly
Application Pool cartridge and DE filters
Material Chemical-resistant construction

Buy with Confidence from Benchmark Pool Supply

When you purchase the Swimables Hayward-Style Air Relief Valve Assembly with Pressure Gauge (SW-27-242) from Benchmark Pool Supply, you’re buying from a pool-focused retailer that understands real-world equipment compatibility.

Benchmark Pool Supply stocks trusted replacement parts, provides knowledgeable support, and helps ensure your pool equipment operates safely and efficiently season after season.

Swimables Hayward-Style Top Mount Pressure Gauge
Regular price $112.95 Sale price$124.99

Frequently Asked Questions

What does the Swimables SW-27-242 assembly include?

What does the Swimables SW-27-242 assembly include?

The Swimables SW-27-242 includes both a manual air relief valve and an integrated pressure gauge in one complete assembly.
Which filters is this assembly compatible with?

Which filters is this assembly compatible with?

Swimables cross-references SW-27-242 to Hayward DEX2420MAR2. Use the exact filter model and parts diagram to confirm that assembly before ordering.
Is this product only a replacement pressure gauge?

Is this product only a replacement pressure gauge?

No. SW-27-242 includes the air-relief valve assembly and gauge. If only the gauge needs replacement, first identify the correct separate gauge for your assembly.
Is this an OEM Hayward part?

Is this an OEM Hayward part?

No. It is an aftermarket assembly manufactured by Swimables for the stated Hayward-style application.
Who should install the air-relief assembly?

Who should install the air-relief assembly?

Use a qualified pool professional. The circulation system must be shut down and fully depressurized before service, and the assembly must be secured according to the filter manual.