Amtrol Extrol SX-40V Boiler Expansion Tank – 20 Gallon Capacity, 100 Psi, Standing Style

This here’s the Amtrol Extrol SX-40V, a solid pick if you’re setting up or upgrading a boiler system.

Holds a good 20.0 gallons and handles up to 100 psi like a champ.

Brand new, still in the original packaging—just the way you’d find it in a store.

No MPN listed, but it’s genuine Amtrol quality.

Perfect for keeping your pressure steady and your system running smooth.

Whether you’re a pro or a DIY-er, this tank’s got your back.