Nice link, Thanks Kenton!
Not if Doug in post #4 is correct.
I’ve seen gray PEX on dishwasher and refrigerator supply lines.
PB"most commonly grey in color, but they can also be white, silver, black or blue. Blue PB is used primarily outdoors."
PEX"cross-linked polyethylene can be black, blue or red."
http://www.nachi.org/pb.htm
I wouldn’t think so.
Polyethylene
The lighter gray fixture supply lines sold today in hardware stores are PEX. They used to be the darker gray PB lines, which are still under a few sinks today…time to change them out. I don’t see a lot of PB supply lines in the walls except in older mobile homes.
That is PB, I have seen grey, black, white and blue PB. Grey is the most common, black was more common in the later years (late 1990’s and on) and used mostly when coming up from a slab, white is rare but I did see it once. Never saw any blue that I can think of. FYI, I have personally found PB in a 2002 home once.
It’s polybutylene.
Hi, I am running to the same issue with the insurance agent mentioning that it was reported in the past as pex pipe and now I put it as poly. See attached
How can we explain to them that gray pupes are poly?
First, PEX is a type of poly pipe. I would refer to it as PB (polybutylene), not simply poly.
It is PB because the markings say so right in your pic; it shows D-3309, a standard that was used to test PB pipe (tubing).
3 Likes
Not sure what year the home was built but if you cannot verify it is PB, then crafty words will give them the information they need.
The pipe is consistent with PB which was commonly used during the era this home was built. …Then talk about your concerns with PB and the need to be further evaluated by a qualified plumber in order to better understand risks and replacement cost if needed.
1 Like
Maybe this will help. There’s enough information on that pipe for me to be comfortable calling this polybutylene tubing.
3 Likes
forgot to reply back and thank you, excelant.
1 Like
Faucet PEX supply lines come in gray, you can buy them at any supply house, home Depot or lowes
Not even close to the same size.
2 Likes
I didn’t say it was, or was just stating PEX comes in gray.
Why? Not in the size the OP was asking about.
