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Reliance Water Systems 14 gal Pre-Charged Horizontal Well Tank

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A low-profile design that fits where upright tanks can't, with epoxy-lined steel to stand up to daily well water pressure.
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Reliance Water Systems item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

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Why isn't this online? The whole story →

About Product Overview

This 14-gallon horizontal well tank from Reliance Water Systems is built for well systems where floor space runs low but pressure demands don't. Instead of standing upright like most pressure tanks, it lays flat, making it a fit for crawl spaces, under-counter installs, or basements with limited headroom. The steel tank comes pre-charged and lined with epoxy to resist corrosion from constant water contact, which matters for a component that never really gets a break.

The 1" MPT male connection keeps hookup straightforward for standard well piping, and the tank is rated up to 120°F, covering typical well water temperatures without issue. At 25 lbs empty, it's manageable for one person to position and connect in tight quarters. Made in the USA, it's a solid pick for homeowners or plumbers replacing an undersized tank or retrofitting a system where a vertical tank simply won't fit.

  • Capacity: 14 gallons
  • Connection: 1" MPT, male
  • Material: steel with epoxy lining
  • Maximum temperature: 120°F
  • Dimensions: 21.75"W x 15.375"D x 17.375"H
  • Weight: 25 lbs

The Details Specifications

Ships Ground Travels by ground for safe handling — common for items with a lithium battery, aerosol, or liquid inside. Nothing extra to do on your end; it simply ships by truck instead of by air.
Non-Returnable This product cannot be returned. All sales final.
Brand Reliance Water Systems
Model / MPN PMDH-14
UPC 091194013556
Weight 25 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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