Blackburn Mfg. Co. is the leader in Marking Flags. Blackburn is unmatched in quality marking flags with the best customer service in the industry for 60 years. Marking Flags, Posting Signs, Inverted marking Paint, All Flagging Tape, Measuring Tapes, Utility location, Athletic Field and Pavement Striping Paint.
From marking flags and posting signs, to paints and tapes, Blackburn Manufacturing is your complete source for marking products!
Vinyl Plain Flags
All APWA Colors • 4 Mil.
- Standard Flag Colors: Red, White, Yellow, Orange, Blue, Green, Brown, Silver, Purple, Clear, Black
- Fluorescent Flag Colors: Flo Orange, Flo Pink, Flo Lime, Flo Rocket Red, Flo Green
High Gloss Poly Plain Flags
Durable, Glossy Polyethylene
Fade-Resistant • 3 Mil.
- Flag Colors: White, Yellow, Red, Orange, Blue, Green
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ST800: 800amp Service Tester
1. Test Integrity of Secondary Service
2. Identify Secondary Cables
3. Identify Feed In and Feed Out at Padmount
4. Identify Energized and De-Energized Cables