Stanley Virax 3/8" ASTM F1807 crimp ring inserts for M20+ . For PEX tubing.
The Virax 253220 is a professional-grade 3/8-inch ASTM F1807 M20 crimp ring insert set. Manufactured by the French plumbing specialist Virax, this insert set is designed to slide directly into a compatible mother jaw system to securely compress copper crimp rings onto 3/8-inch PEX piping.
Product Specifications
- Tubing Target: 3/8" PEX (Cross-linked Polyethylene) plumbing and radiant heating systems.
- Standard Profile: Conforms strictly to ASTM F1807 structural copper crimp ring geometry.
- Material Construction: Forged from high-strength structural tool steel treated to a hardness rating of 33 HRC to prevent jaw deformation over a long operational lifespan.
- Mother Jaw Interoperability: Engineered to slip interchangeably into Virax M20/M21 mother jaws. It is fully compatible with the Viper radial pressing tool lineup, including the Viper M20+, M21+, ML21+, M2X, L2X, P25+, and M3X power tools.
Sourcing & Distribution
- Specialist Acquisition: This size can be special-ordered or procured through specialized industrial plumbing suppliers and specialty trade stockists such as Ultimate Garage where warehouse new-old-stock items are carried.
