L4W Skimmer Lid with Built-In Thermometer

Pentair
SKU: L4W UPC: 807318004559
Regular price $134.95
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Quick Facts
Built-In Water Thermometer
9-3/16-Inch Diameter
Round White Lid
Sealed Thermometer Face
Pentair Model L4W
Key Benefits +
  • Combines a skimmer cover and water thermometer
  • Keeps the temperature display at the skimmer
  • Provides the specified 9-3/16-inch round format
  • Uses a sealed thermometer face
  • Reduces the need for a separate floating thermometer
How to Use +
1 Confirm the skimmer model and compare the existing lid's dimensions and seating surface. Follow the skimmer's instructions when replacing the cover. Check that the replacement sits securely and evenly. Inspect the lid regularly for cracks, damage or a loose fit.
Specifications +

Brand: Pentair

Model / SKU: L4W

Product Type: Skimmer lid with thermometer

Shape: Round

Diameter: 9-3/16 inches

Color: White

Application: Compatible Pentair skimmer openings

Thermometer Face: Hermetically sealed

UPC: 807318004559

Buy with Confidence from Benchmark Pool Supply +

Benchmark Pool Supply can help you compare the L4W with your existing skimmer cover. Check the lid diameter and seating arrangement before ordering. Matching the actual lid style helps avoid confusing this thermometer version with the L4RW cover.

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 +

The Skimmer Lid L4W with Thermometer is an OEM-quality replacement skimmer lid designed to cover compatible in-ground pool skimmers while providing an integrated water temperature reading. Skimmer lids play a critical role in protecting the skimmer housing, maintaining safe pool deck conditions, and allowing easy access for routine skimmer basket maintenance.

This model features a built-in thermometer, allowing pool owners and service professionals to quickly monitor pool water temperature without additional tools. A cracked, loose, or missing skimmer lid can create safety hazards and expose internal skimmer components to debris and sunlight. Replacing a worn lid with the L4W helps restore a flush, secure cover while adding convenient temperature visibility.

Manufactured for durability and proper fit, this skimmer lid is designed to perform reliably in residential pool environments.


Why the L4W Skimmer Lid with Thermometer Matters

Skimmer lids protect equipment and improve pool safety.

Why this matters:

  • Covers the skimmer opening to reduce trip hazards

  • Protects internal skimmer components from debris and UV exposure

  • Provides quick, at-a-glance water temperature readings

A secure, properly fitting lid supports safer pool operation and easier maintenance.


Integrated Thermometer Convenience

The built-in thermometer allows for simple monitoring of pool water temperature during routine checks. This feature is especially useful for seasonal transitions, heater adjustments, and general water condition awareness without the need for handheld thermometers.

Clear visibility helps support better pool management decisions.


Durable Construction for Pool Environments

The Skimmer Lid L4W is constructed from pool-grade, chemical-resistant materials designed to withstand exposure to chlorinated water, sunlight, and outdoor conditions. Its rigid design helps prevent warping or cracking under normal use.

Quality construction ensures consistent fit and long service life.


Product Specifications

Specification Details
Product Type Pool skimmer lid
Model L4W
Feature Integrated thermometer
Application In-ground pool skimmers
Installation Drop-in skimmer cover
Material Pool-grade molded plastic
Function Skimmer protection and temperature display
UPC 4197757068
Condition New

Installation & Maintenance Notes

The L4RW skimmer lid installs directly into the skimmer opening with no tools required. Ensure the lid sits flush and stable after installation.

Inspect skimmer lids periodically and replace if cracking, warping, or looseness is observed to maintain safety and equipment protection.


Buy with Confidence from Benchmark Pool Supply

When you purchase the Skimmer Lid L4W with Thermometer from Benchmark Pool Supply, you’re selecting a pool-grade replacement part chosen by experienced pool professionals.

We stock dependable skimmer components to help keep pool equipment protected and pool decks safe. With knowledgeable staff and local inventory, Benchmark Pool Supply is your trusted source for pool skimmer replacement parts.

L4W Skimmer Lid with Built-In Thermometer
Regular price $134.95

Frequently Asked Questions

What is included in the L4W lid design?

What is included in the L4W lid design?

L4W combines a round skimmer cover with a built-in thermometer for checking pool water temperature.
What size and color is Pentair L4W?

What size and color is Pentair L4W?

Pentair specifies a 9-3/16-inch round lid in white. Check the skimmer opening and seating arrangement before ordering.
Is L4W the same as L4RW?

Is L4W the same as L4RW?

No. Pentair lists L4W with a thermometer and L4RW without one. Confirm the exact model you need.
Will L4W fit every Pentair skimmer?

Will L4W fit every Pentair skimmer?

No universal fit is established. Compare the skimmer model, lid diameter and seating style; other Pentair lids have different dimensions.
When should a skimmer lid be replaced?

When should a skimmer lid be replaced?

Replace a damaged or poorly fitting lid. Inspect both the cover and its support surface so the replacement can sit securely.