Eric Aune on Instagram: "Fosta-PEX explained. Another benefit the aluminum offers is more stable expansion and contraction when compared to standard pex tubing. This stuff was well liked because it wasn’t noodle’y like typical pex and could replace copper for long distribution lines to remote manifolds or even for piping whole baseboard systems. Definitely faster than copper and no flames on install. @viegallc sold this in North America for years but stopped distributing here maybe 5-ish years a