Min Tnk, 8x44 Blue Poly Glass

Pentair's 8" x 44" blue Poly Glass mineral tank is one of the most popular vessel sizes in all of residential water treatment, commonly used for compact softeners, carbon filters, and specialty media beds serving smaller homes and point-of-entry applications. The familiar 8x44 footprint fits neatly into closets, utility rooms, and garage corners, which is a big part of why it remains a go-to choice for installers building or replacing systems in space-conscious homes where a larger tank would simply not fit comfortably.

Construction and finish

Built by winding fiberglass over a seamless inner liner, the Poly Glass tank delivers excellent strength-to-weight performance and resists corrosion far better than any steel vessel. The blue exterior gives a clean, professional look in the mechanical space, while the chemically inert liner ensures the tank itself will not alter the chemistry of the treated water passing through it. At roughly 8.91 lbs empty, the tank is light enough for one person to position and plumb during installation, yet rugged enough for years of dependable service under everyday operating pressure.

• Nominal 8" diameter by 44" height
• Blue Poly Glass (fiberglass-wound) construction
• Corrosion-resistant with a chemically inert inner liner
• Empty weight approximately 8.91 lbs for easy handling
• Accepts standard control valves and distributor tubes
• Versatile enough for softening resin, carbon, or specialty media

To build a complete system, combine this tank with a compatible top-mount control valve, the correct distributor and riser tube, and the media appropriate to your water problem. Always verify thread and distributor compatibility before assembly, and stay within the manufacturer's rated pressure and temperature throughout operation. The broad popularity of the 8x44 size means it is widely supported by valves, distributors, and replacement parts, so you are never locked into a hard-to-source configuration. Whether you are assembling a new softener, putting together a carbon filter, or simply replacing an aging tank that has reached the end of its service life, this Pentair 8x44 offers proven durability and broad compatibility that make it a safe, sensible choice for residential water treatment. Stock this familiar size with confidence, knowing it will integrate smoothly with the valves and accessories you already use and remain easy to support throughout its long service life.