Start by matching the tool to your connection style and pipe sizes.

• Connection type: Copper crimp rings typically follow ASTM F1807 and need size-specific jaws. Stainless steel clamp rings generally follow ASTM F2098 and use a cinch tool that covers multiple sizes.
• Sizes you’ll work with: Many kits focus on 1/2 in. and 3/4 in., while others cover 3/8 in. up to 1 in.
• Workspace: Compact or angled heads can help in tight spots.
• Volume: Manual tools work for occasional jobs; hydraulic or electric press tools can speed up repetitive tasks.
• Included extras: A go/no-go gauge, pipe cutter, and carry case add convenience.

Check local codes and your fitting manufacturer’s guidance. On Walmart.com, you can filter by standards, sizes, and included accessories, then choose store pickup or delivery.

Both approaches can perform well when used with compatible parts and properly verified.

• Crimp (ASTM F1807): Uses copper rings and jaws sized to each diameter. It can offer consistent results with a go/no-go gauge check.
• Clamp/Cinch (ASTM F2098): Uses stainless rings and a single cinch tool for multiple sizes, which can be handy for DIY and tight spaces.
• Parts compatibility: Match the tool and ring style to the fitting system you’re using—don’t mix standards.
• Access and speed: Cinch tools are versatile; crimp tools can be efficient when you use the same sizes repeatedly.

Whichever you choose, follow the ring/fitting standard, verify connections, and pressure test per local code. Walmart’s filters make it easy to sort by standard and size range.

A few small checks can help reduce rework and leaks.

• Mixing standards: Don’t use F1807 crimp rings on fittings intended for F2098 clamps, and vice versa.
• Wrong jaw or ring size: Match tool jaws and rings to the pipe size.
• Poor pipe prep: Skip ragged cuts. Cut square, remove burrs, and ensure the pipe is round.
• Improper ring placement: Position the ring per the fitting’s instructions, typically a set distance from the shoulder.
• Incomplete crimp: Always verify with a go/no-go gauge (for crimp) or the tool’s closure indicator/visual check (for clamp).
• Skipping pressure testing: Before closing walls, test according to local code.

Wear eye protection when cutting and follow the tool and fitting manufacturer’s instructions.

Both PEX-A and PEX-B can be used with crimp or clamp systems when the pipe and fittings are rated for that method.

• Compatibility first: Look for fittings and rings that specify ASTM F1807 (crimp) or F2098 (clamp), and confirm your pipe is approved for that system.
• Method flexibility: PEX-A is often used with expansion-style fittings, but crimp/clamp can also be suitable when allowed by the pipe and fitting manufacturer.
• Local code: Some jurisdictions prefer or specify certain systems—check before you buy.
• Tooling and access: Choose based on your workspace and the sizes you’ll use most.

Review the labeling on your pipe and fittings and follow the system’s instructions for best results.

Verification helps catch issues before you turn the water back on.

1. Use a go/no-go gauge: For copper crimp rings (F1807), slide the correct size gauge over the crimp. It should pass the “go” slot and not pass the “no-go.”
2. Check clamp closures: For stainless clamps (F2098), confirm the tool fully closed and the clamp ear is properly flattened per the ring’s guidance; many kits include a visual indicator.
3. Inspect placement: Ensure the ring is set at the recommended distance from the fitting shoulder and the pipe is fully seated.
4. Pressure test: Follow local code for testing before covering walls.

If a connection fails the gauge or visual check, cut it out and redo the joint with new components.