071407 | Pentair Purex CF Hex Nut

The Pentair 071407 Purex CF Hex Nut is a heavy-duty replacement fastener used on Pentair/Purex CF-series cartridge filters, securing the filter lid and maintaining a tight, pressure-rated seal. This hex nut is engineered from corrosion-resistant material to withstand constant exposure to pool chemicals, moisture, and outdoor environments. It provides the clamping strength needed to keep the tank top locked in place during operation, preventing leaks and ensuring the filter maintains proper internal pressure. Ideal for replacing stripped, rusted, or worn hardware, the 071407 nut restores safe and reliable fastening for continued filtration performance.

Highlights

• Exact Fit for Purex CF Filters: Designed to match the original hardware used on Pentair/Purex CF-series cartridge filters, ensuring proper alignment and secure lid fastening.

• Restores Seal Integrity: Replacing worn or damaged nuts improves the filter’s ability to hold pressure and maintain a leak-free top-tank seal during operation.

• Chemically Resistant Construction: Built from materials that resist rust, corrosion, and chemical degradation caused by chlorinated or saltwater pool environments.

• Maintains Safe Operating Pressure: Provides the necessary clamping force to keep the tank lid firmly locked, supporting safe filtration and protecting internal components.

• Ideal for Service & Rebuilds: A simple but essential replacement part that ensures long-term reliability when refurbishing older Pentair/Purex CF filter systems.

Additional Info

This FAQ helps in-store customers confirm whether the Pentair 071407 hex nut fits their Purex CF cartridge filter. It also explains what to check before visiting Discount Pool Mart, including lid alignment, thread size, and signs of worn hardware.

Filter Compatibility, Hardware Sizing & Fitment Checks

These answers help walk-in customers verify that this hex nut matches their filter.

How do I confirm the 071407 nut fits my filter?

Check your filter label for a Purex CF-series model. Bringing a photo of the lid and clamp area to the store helps staff confirm the correct hardware.

Does this nut match the original Purex CF fastener?

Yes. It is an exact replacement for the OEM hardware used to secure the top of CF-series cartridge filters.

Can I bring my old nut to compare in store?

Yes. Walk-in customers often bring the worn nut or photos so staff can check thread compatibility.

Seal Integrity, Pressure Holding & Hardware Behavior

These answers explain how the replacement nut affects filter operation.

Will a new hex nut help stop leaks around the lid?

Yes. Worn or stripped hardware can prevent the lid from clamping evenly; replacing the nut restores proper seal compression.

Can loose hardware affect internal pressure?

Yes. If the nut fails to hold tension, the filter may not maintain pressure correctly during operation.

Does this help improve safety on older CF filters?

Yes. Secure fastening helps keep the lid locked during pressure cycles, reducing the risk of leaks or shifts.

In-Store Pickup, Inspection & Installation Prep

Guidance for Discount Pool Mart customers preparing to visit.

Can I inspect the nut before purchasing?

Yes. You can review the threading, size, and clamping surface at the counter.

Should I bring other parts for comparison?

Bringing the clamp or lid bolt helps staff ensure perfect compatibility.

Is the nut ready for installation after pickup?

Yes. Once threaded onto the filter’s existing bolt or rod, it is ready to tighten into place.