Home » Waterway | 519-7420 | Lock Tab (Extended Arms) – Clearwater II Filter

Waterway | 519-7420 | Lock Tab (Extended Arms) – Clearwater II Filter

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SKU: 519-7420
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Length: 4.2 in Width: 2.3 in Height: 1.5 in
$21.99

The Waterway 519‑7420 Lock Tab (Extended Arms) is a genuine OEM locking tab for the Waterway Clearwater II filter series. This yellow extended-arm tab secures the filter lock-ring mechanism, restoring proper clamping force for safe and leak-free operation. 

Key Features

  • OEM part number: 519-7420 (sometimes referenced as 519-7420B) for extended-arm lock tabs. 

  • Compatible with Clearwater II cartridge & D.E. tank models for the lock-ring band assembly. 

  • Bright yellow color for easy visibility during service and proper orientation. 

  • Extended arm design helps provide additional leverage and easier handling when securing or releasing the lock ring.

  • Easy, drop-in replacement – install by snapping into the existing lock ring assembly.

  • Value-priced service part to maintain filter safety and performance without replacing the full filter lid or tank.

Product Overview
When the lock-tab on a Clearwater II filter becomes cracked, worn, or missing, the lock ring may not properly engage or maintain clamping pressure. This can result in leaks, lid lift, or compromised filter performance. Installing the 519-7420 Lock Tab restores correct locking engagement and allows the lock ring mechanism to perform as intended.