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Plumbing
Plumber Red Seal Certification
National Plumbing Code & Safety
Knowledge Check
National Plumbing Code & Safety
Knowledge Check
Knowledge Check
1 / 9
What are the minimum condensate drain line sizes per NPC 2025 for commercial and residential applications?
A
NPS 1/2 for both commercial and residential
B
NPS 1-1/4 for both commercial and residential
C
NPS 1 commercial, NPS 3/4 residential
D
NPS 3/4 commercial, NPS 1/2 residential
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