It can be colored, polish, etc...The most beautiful are polished.
I have seen vents painted all kinds of colours. You may be talking about a specific kind of vent. Please let us know where these red vents are,then we may know why they are red.
A black smoker is a underwater vent pipe that vents very hot magma-heated saltwater and it grows in height to as much as 20 feet. Even at high temperatures crabs and shrimp live on these smokers.
It's a Lateral vent pretty much
PIE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The Fissure vent .
Yes a vent pipe can be painted AFTER it has passed inspections and some localities want the piping labeled "Vent"
Definition: Wet vent means a waste pipe that also serves as a vent pipe
blockage in vent tiring to relieve waste pipe
The best type of hose clamp to use for securing a dryer vent in place is a stainless steel worm gear clamp.
Yes, some are made for the outdoors, stainless steel are the only ones that last outdoors very long.
B-vent pipe.
A pipe that vents fumes
No. You vent air from a sewer line.
dvw pipe = drain, waste and vent pipe.
Definition: Wet vent means a waste pipe that also serves as a vent pipe
Vent pipe inspection kit
The purpose of air vent on pipe works of infrastrucure