Technical Guide
PEX-A vs PEX-B
Two types of PEX plumbing pipe. Both good. Installation method differs.
Quick Verdict
PEX-A: most flexible, self-healing after kinks, expansion-fitting connections. Best quality, 10-15% more expensive. PEX-B: slightly stiffer, crimp-ring connections, lower cost. More common in Tampa. For most Tampa repipes: PEX-B is fine. PEX-A for premium installs or complex routing. Call (813) 343-2212.
PEX-A vs PEX-B
| Feature | PEX-A | PEX-B |
|---|---|---|
| Manufacturing method | Peroxide (most flexible) | Silane (stiffer) |
| Flexibility | Highest | Moderate |
| Cost premium | +10-15% over PEX-B | Baseline |
| Self-healing kinks | Yes | No (must cut out) |
| Fitting type | Expansion (Uponor) | Crimp ring |
| Chlorine resistance | Excellent | Very good |
| Whole-home repipe Tampa | $5,500-$9,500 | $4,500-$8,500 |
| Lifespan | 40-50 yrs | 30-50 yrs |
What We Recommend
For most Tampa repipes: PEX-B. Great performance, lower cost, very common. $4,500-$8,500 whole-home.
Upgrade to PEX-A if: complex routing with tight bends, premium installation, long-term (30+ year) stay. $5,500-$9,500 whole-home.
Avoid PEX-C (third type, older manufacturing). Rare now.
FAQ
Both code-approved?
Yes, both meet Florida and national plumbing codes.
Freeze protection?
PEX-A handles freeze-thaw better (flexibility). Not critical in Tampa.
Who installs which?
Home Therapist installs both. Default PEX-B unless customer requests PEX-A.