Pentair 354588Z 1.5" NPT to Buttress Adapter | Sand Dollar & Meteor Filters

The Pentair 354588Z (also known as part 354588) is a genuine OEM replacement adapter designed specifically for Pentair above-ground pool filtration systems. This essential 1.5-inch fitting allows you to convert standard internal NPT (National Pipe Thread) connections to a specialized Buttress thread, ensuring a secure, leak-proof seal between your pump and filter.

Whether you are performing routine maintenance or replacing a cracked fitting, using genuine Pentair parts ensures your system maintains optimal pressure and flow.

🚩 PRO TIP: Installation Best Practices

To prevent leaks and protect your equipment, apply Teflon tape to the NPT (Pipe) threads only. Never apply tape or sealant to the Buttress threads, as they utilize a compression seal. Hand-tighten plus a 1/4 turn is recommended; over-tightening can lead to cracked ports or stripped threads.

PRODUCT FEATURES

• Genuine OEM Part: Guaranteed fit and performance for Pentair filtration systems.
• Precision Threading: Seamlessly converts 1-1/2" NPT to 1-1/2" Buttress thread.
• Heavy-Duty Construction: Built with high-impact, UV-resistant materials to withstand harsh pool chemicals and outdoor exposure.
• Wide Compatibility: Designed for use with Meteor, Sand Dollar, and Cristal-Flo II above-ground sand filters.
• Direct Replacement: Solves issues with stripped threads or leaking filter port connections.

TECHNICAL SPECIFICATIONS

• Part Number: 354588Z / 354588
• Manufacturer: Pentair
• Size: 1.5 Inch (1-1/2")
• Connection: NPT (Male) to Buttress (Male)
• Weight: 0.2 lbs
• Compatibility: Pentair Meteor, Sand Dollar, and Cristal-Flo II Series Sand Filters.

WHY SHOP WITH AL'S COOL POOL STORE?

• Fast, Reliable Shipping: We get your parts to you quickly so you can get back to enjoying your pool.
• Genuine Parts Only: We only stock authentic OEM and top-tier brands—no low-quality knockoffs.
• Expert Support: Our team knows pool equipment inside and out.
• Hassle-Free Returns: Not the right fit? Our satisfaction guarantee has you covered.