Pentair 152509Z Commercial Dome Closure O-Ring for TRITON C/C-3, 8.5″

Description

Pentair 152509Z Dome Closure Ring for TRITON C/C-3 Filters

The Pentair 152509Z is a factory-original square‑cut O‑ring designed for 8.5″ commercial dome closures, providing a tight seal on Triton C and Triton C‑3 sand filter lids (TR100C, TR140C, and their “‑3” variants), as well as select Challenger High Flow (5 HP) and AFP‑180 Waterfall pumps. Manufactured from high‑quality elastomeric rubber, it resists compression set, chemical exposure, and UV degradation while maintaining system integrity.

Pentair makes the most of life’s essential resources, from great tasting water straight from the kitchen faucet, to industrial water management and everywhere in between. We deliver solutions that help people move, improve and enjoy water, and sustainable applications that help ensure the health of the world. Pentair diversified quickly venturing into a wide variety of industries and eventually focusing its portfolio on water treatment and sustainable applications. This includes acquisitions of great brands, some of which have been serving customers for 150 years.

Pentair 152509Z Dome Closure Ring for TRITON C/C-3 Filters Features:

• Compatible with Triton TR100C / TR140C and “‑3” filters, Waterfall AFP‑180 pumps, and 5 HP Challenger High Flow units
• Designed to provide a pressure‑tight seal at the dome closure—preventing air and fluid leaks during filter operation
• Withstands pool chemicals, UV exposure, and compression fatigue
• Dimensions: 8.5″ OD x 0.2–0.25″ thickness
• Crafted from durable synthetic rubber
• Easy to install

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