WSP 21x62" Mineral Tank - Blue

When the dishwasher door fogs up or the kettle starts leaving a crusty ring, the unseen pressure vessel inside your water treatment system is doing its job—or struggling to. The WSP 21x62" Mineral Tank - Blue is the sturdy container that holds the mineral media, the heart of your whole-house softening or conditioning setup.

Morning chores reveal the signs of wear in your water treatment

That cloudy film on your glassware or the rough feeling of towels just after washing happens because your system’s mineral tank isn’t performing as it should. It's the part that holds the mineral media working to reduce scale from hard water. When this tank weakens, cracks, or loses integrity, water softening becomes inconsistent. You might notice more stubborn scale buildup around faucets or on your shower door, things that no amount of scrubbing seems to fix anymore.

How the control head keeps your system cycling smoothly

This tank is designed to pair with an automatic control head that manages the essential backwash and rinse cycles. These cycles flush the mineral media to keep it effective, preventing clogging and loss of flow. The control head fits on top of the tank with a 4 TO (top opening) design, allowing easy access for maintenance without dismantling your whole setup. You set it once, and it handles the timing automatically, saving you effort and helping your softener work efficiently.

The mineral media inside that tackles hard water problems

Inside the tank is the mineral media that actually treats your water. This media works by conditioning minerals like calcium and magnesium, the usual suspects in hard water, to reduce scale buildup. The tank’s sturdy design ensures the media stays contained and water flows through it evenly, making the treatment reliable across your entire home or light-commercial property.

The tank itself: built to last and handle plenty of water

This mineral tank measures 21 inches by 62 inches, giving it a large volume to hold a substantial amount of media. Its robust blue polyglass exterior resists corrosion and damage, ensuring the pressure vessel lasts many years without failing. It supports a service flow around 27 gallons per minute, enough to keep water softening running smoothly even in bigger households or lighter commercial settings.

Who this mineral tank suits best

The WSP 21x62" Mineral Tank is ideal for large homes or light-commercial properties that need a reliable vessel to hold their mineral media. If your property has multiple bathrooms or a higher water demand, this tank is sized to handle that volume without strain. Those with smaller households or lower flow needs should consider smaller tanks to match their usage more efficiently.

What you receive and what comes next

Ordering the WSP 21x62" Mineral Tank - Blue ships from Tampa with free U.S. delivery included. You get a lifetime warranty on the tank itself, so the pressure vessel is covered for life. The automatic control valve and electronics are covered under their manufacturer’s warranty. Once you order, confirm your local licensed plumber can install it—they handle fitting and plumbing. Our team is on hand to help with sizing and support by phone or email, making sure this tank fits your system and your needs.

Who this size is right for

This is rated for roughly 27 gallons per minute of service flow, which suits a large or light-commercial property.

Flow rate matters more than tank size here: add up the fixtures that could realistically run at the same time and make sure this covers them. If you land close to the limit, go up rather than down.