1in PEX Copper Ring 300pcs - Pro Crimp Rings for Potable Water

Our review of the 300Pcs GUOFIS 1in PEX Copper Ring looks at whether this bulk pack is worth adding to a plumber's bag or a DIY toolkit. The bottom line: it is best for installers and homeowners who need a large, dependable supply of crimp rings that work with standard fittings and 1in PEX tubing. The single biggest reason to buy is the job-ready 300 count of copper rings with an anti-corrosion black finish, which reduces interruptions from rust and keeps a project moving without repeated trips to the supplier.

Key Features

• Quality Copper: Made from premium copper so rings are suitable for both hot and cold potable water lines without compromising material integrity.
• Anti-Corrosion Finish: The black surface treatment helps resist rust in high-moisture environments, extending the usable life of stored rings on site.
• Universal Compatibility: Designed to work with 1in PEX tubing and all standard brass or poly crimp fittings, simplifying part selection.
• Installation Guide Included: Simple three-step guidance - slide ring on pipe, insert fitting, then use a crimp tool to tighten - which helps avoid installation errors.
• Job-Ready Pack: The 300 count bundle provides enough rings for multiple repairs or a larger plumbing job, reducing trips to restock.

Who It's For

This product is aimed at professional plumbers, contractors, and serious DIYers who work on residential or light commercial PEX plumbing and value having a bulk supply. The large pack size is especially useful for longer jobs, service vans, or maintenance teams that want consistent parts on hand.

Those who should look elsewhere include people who need rings for non-1in tubing or custom fittings, and anyone who prefers stainless steel or non-coated finishes for specialized corrosive environments; the rings here are copper with a black surface treatment designed for general potable water use.

Pros & Cons

Pros

• High quantity pack eliminates frequent reordering for larger projects.
• Copper construction provides reliable material performance for potable water.
• Black anti-corrosion treatment helps prevent rust during storage and use.

Cons

• Not suitable if you specifically require a different ring material such as stainless steel for highly corrosive installations.

Specifications

Brand	GUOFIS
Material	Copper with black surface treatment
Size	1in (for 1in PEX tubing)
Pack Quantity	300 rings
Compatibility	Standard brass or poly crimp fittings
Intended Use	Hot, cold and potable water systems

Our Verdict

The 300Pcs GUOFIS 1in PEX Copper Ring pack is a practical choice for tradespeople and DIYers who want a dependable, bulk supply for standard 1in PEX installations; the copper construction and anti-corrosion finish make it good value for routine plumbing work where standard crimp fittings are used.

Frequently Asked Questions

Will these rings fit my existing crimp fittings?
Yes, they are designed for use with standard brass or poly crimp fittings sized for 1in PEX tubing.

Are these rings safe for potable water?
Yes, the rings are crafted from copper and intended for use in potable water systems.

How do I install the rings?
Slide the ring onto the pipe, insert the fitting, then use a crimp tool to tighten according to the included three-step guide.