100 PCS Stop Valve Pex-a 1/4 Turn 3/8in OD Compression X 1/2in

Our review of this bulk pack of stop valves looks at who will benefit most and the single biggest reason to buy: it supplies 100 lead free, chrome plated brass 1/4 turn valves intended for Pex-a expansion systems, making it a convenient choice for large projects or builders who need consistent, compatible fittings. The reviewer found the valves deliver reliable shutoff performance and a clean finish, and notes that they are best suited where an expander tool and PEX sleeves are already in use, since those accessories must be sourced separately.

Key Features

• 100-piece bulk pack: Packs of 100 valves keep parts consistent on multi-fixture jobs and reduce the need for repeated orders.
• 1/4 turn operation: The valve provides quick on/off control which helps speed up installation and future maintenance.
• Compatibility with PEX-a: Designed for 1/2 in PEX-a piping and expanding fitting systems to ensure a proper expansion-style connection.
• Lead free brass construction: Chrome plated brass offers corrosion resistance and a professional polished finish for visible installations.
• Standards certified: Certified to ANSI/NSF-61 and ASSE 1061 standards, providing assurance for potable water use where those certifications are required.
• Compression x expansion ends: The 3/8 in OD compression outlet fits common tubing runs while the expansion inlet suits PEX-a.

Who It's For

This pack is aimed at plumbers, RV and camper renovators, and contractors who use PEX-a and expanding fitting systems regularly and need a large, consistent supply of shutoff valves for multiple fixtures or builds. Buyers who already own or plan to use an expander tool and the appropriate PEX sleeves or rings will get the most value.

It is not the best choice for those using stainless steel clamp or copper crimp ring systems, since the product is not compatible with those connection types. Also, homeowners unfamiliar with expansion fittings should factor in the cost and learning curve of the expander tool and sleeves before committing to this bulk pack.

Pros & Cons

Pros

• Good value for money when many valves are needed, reducing per-unit cost.
• Customers report strong leak resistance and easy installation when used with the correct expansion tools and sleeves.
• Chrome plating and brass construction give a clean, durable finish for visible plumbing runs.

Cons

• Requires separate purchase of an expander tool and PEX sleeves or ring, which adds to initial cost.
• Some customers report size and fit questions with certain US standard pipes, so check local tubing dimensions before buying in bulk.

Specifications

Quantity	100 pieces
Valve type	1/4 turn stop valve
Inlet	1/2 in PEX-a expansion
Outlet	3/8 in OD compression
Material	Lead free chrome plated brass
Standards	ANSI/NSF-61, ASSE 1061

Our Verdict

This 100-piece pack of PEX-a expansion stop valves is a strong value for professionals and DIYers who work with expanding PEX systems and need uniform, reliable shutoff fittings. It delivers durable, leak-resistant performance when paired with the correct expander tool and sleeves, but buyers should avoid it if they rely on crimp or clamp connection systems.

Frequently Asked Questions

Are these valves compatible with crimp ring systems?
They are not compatible with stainless steel clamp or copper crimp ring systems; they are designed for expansion-style PEX-a fittings.

Do I get the expander tool and sleeves with this pack?
No, the expander tool and PEX sleeves or ring must be ordered separately.

Are these safe for potable water?
Yes, the valves are lead free and certified to ANSI/NSF-61 for potable water use.