FQRANBO 154856 closure lid close-up shows rugged ABS for a secure seal.
FQRANBO Triton-compatible closure housing mounted on a pool sand filter for easy fit.
FQRANBO air relief valve lid packaged for quick installation and air release.
FQRANBO PSI gauge close-up illustrating precise pressure readings for proper venting.
FQRANBO O-rings and lid wrench bundle enabling complete seal maintenance.
FQRANBO black-coated closure dome with corrosion-resistant surface for wet environments.
FQRANBO installed closure on a Triton filter demonstrating leak-free performance.

FQRANBO

FQRANBO 154856 8-1/2-inch Black Buttress Closure for Pentair Triton TR100/TR140 Sand Filters

High-performance patio lawn and garden made for confident daily results

$87.92

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Why customers choose PatioZora Garden

Overview

The FQRANBO 154856 8-1/2-inch Black Buttress Closure Replacement is a purpose-built upgrade for Pentair Triton pool and spa sand filters. It’s designed to help prevent leaks and maintain steady water flow, so your filtration system can operate with greater reliability during routine pool maintenance or busy weekends.

Compatibility

This closure is crafted to fit Triton II TR100 and TR140 units manufactured after 2001-10-01, and Triton C-3 Commercial filters (TR100, TR140, TR100C, TR140C, TR100C-3, TR140C-3) from earlier production. It replaces OE part number 154856, offering a straightforward pathway to a like-new seal without replacing the entire filter housing.

Key benefits at a glance

  • Perfect fit: Designed for targeted Triton TR100/TR140 variants and related TR100C/TR140C models, reducing installation guesswork.
  • Leak prevention: Helps secure the seal and supports consistent water flow through your system.
  • Durable construction: Built from ABS and metal with a corrosion-resistant black coating for long-term use in wet environments.
  • Easy installation: Includes steps to attach the air gauge and bleeder valve, clean and lubricate O-rings, and properly orient the air vent.
  • Complete package: Air relief valve lid, PSI gauge, air safety valve lock nut, O-rings, and a lid wrench are all included.

Real-world use cases

  • During routine maintenance, swap the closure to restore a reliable seal and ensure the filter can perform as expected.
  • If the current closure shows signs of wear or minor leakage, upgrade to this replacement to reduce water loss and maintain system efficiency.
  • When air venting occurs, the integrated relief valve helps manage air flow and keeps pressure more consistent inside the dome.

Care and maintenance tips

Periodically clean the lid O-ring and re-lubricate with silicone grease to preserve a tight seal. When installing, verify the air vent is oriented toward the inside of the dome for optimal venting performance and seal integrity.

What you get in the box

All essential components are included so you can complete a replacement in a single session without hunting for separate parts.

FAQ

Q: Is the FQRANBO 154856 closure compatible with Pentair Triton TR100/TR140 filters?

A: Yes. It fits Triton II TR100/TR140 (post-2001) and select TR100C/TR140C models; verify your unit's compatibility before installing.

Q: What’s included in the package?

A: Air relief valve lid, PSI gauge, air safety valve lock nut, O-rings, and a lid wrench.

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