640350039666

• 6 — Number system
• 40350 — Manufacturer code
• 03966 — Product code
• 6 — Check digit (confirms the number is well-formed)

UPC-A ✓ Valid check digit

• 640350036344 — Azel Sz-86Dx Six Zone Valve Controls For Hydronic Radiant Floor Heating Systems
• 640350034685 — Azel Sz-V6 Six Zone Valve Controls For Hydronic Radiant Floor Heating System
• 640350033855 — Azel Sz-V4 Four Zone Valve Controls For Hydronic Radiant Floor Heating Systems
• 640350052948 — Azel D-135E Non-Programmable Digital Thermostat
• 640350035514 — Azel Sz-84Dx Four Zone Valve Controls For Hydronic Radiant Floor Heating Systems

Azel D-502F: Programmable Digital Thermostat For Hydronic Radiant Floor Heating

Search for Azel D-502F: Programmable Digital Thermostat For Hydronic Radiant Floor Heating on Amazon (or for the code 640350039666)