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Deal.ai › Rheem
Rheem
Rheem RTEX-18 Professional Classic Series

Rheem RTEX-18 Professional Classic Series

Best price now

$224.21at PrairieGritChecked 1 h ago

46% under what the other stores charge

Compared across 7 stores. Prices are checked against each store and labelled with when.

Visit PrairieGrit

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Price facts

  • Lowest price today: $224.21 at PrairieGrit (checked Nov 12, 2026).
  • Checked at 7 stores.

Rheem RTEX-18 Professional Classic Series prices at every store

  • eBayNew

    In stock

    $325.00+ $35.00 shippingChecked 1 h ago
    Visit eBay
  • MIAMI WATER HEATERSNew

    In stockReturn policy

    $410.00Checked 1 h ago
    Visit MIAMI WATER HEATERS
  • Home DepotNew

    In stock

    $449.00Free shippingChecked 1 h ago
    Visit Home Depot
  • Core RangerNew

    In stock

    $449.00Checked 1 h ago
    Visit Core Ranger
  • PrairieGritNew

    Availability unknown

    $224.21Checked 1 h ago
    Visit PrairieGrit
  • WalmartOpen box

    Availability unknownSold by VIPUSA

    $417.00Checked 1 h ago
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $418.00Free shippingChecked 1 h ago
    Visit Amazon

Store links may earn us a commission.

Rheem RTEX-18 Professional Classic Series price history

Lowest price we've seen: $224.21 on Nov 12 at PrairieGrit. Tracked across 5 stores since Nov 12.

About the Rheem RTEX-18 Professional Classic Series

ON SALE UNTIL JULY 31st!

Professional Classic® tankless electric water heaters offer continuous hot water quick and on demand for single point of use or multiple applications.

This is a brand new unit and has a full manufacturer's warranty.

Performance Features

• On demand, continuous hot water

• Compact and stylish with digital temperature control in increments of 1°F ranging from 80°F to 140°F

• 99.8% Energy efficient • Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement

• Simple Installation

• Digital temperature display

Applications

• Standard Hand Sink – 0.5 GPM

• Washing Machine – 1 to 1.5 GPM

• Kitchen Sink – 1 to 2 GPM

• Dishwasher – 1 to 2 GPM

• Water-Saver Shower Head – 1.5 GPM

• Standard Shower Head – 2.0 GPM

• Bath Tub – = 4 GPM

• Whole-Home – up to 6 GPM

Average Gallons Per Minute (GPM) based on 2010 Plumbing Standards

Unique Features

• External Digital Thermostatic Control with LED display (+/- 1 degree accuracy)

• Most advanced self-modulation, adjust power to meet hot water demand

• Durable Copper Immersion three heating elements, field serviceable

• Simple Installation – Bottom 3/4"NPT water connections

Questions and answers

Where is the Rheem RTEX-18 Professional Classic Series cheapest?
At PrairieGrit, for $224.21, 46% under what the other stores charge, as of our latest check.
Where can I buy the Rheem RTEX-18 Professional Classic Series?
7 stores we checked sell it, including MIAMI WATER HEATERS, Amazon, PrairieGrit, eBay, Walmart.

Stores we've priced the Rheem RTEX-18 Professional Classic Series at

  • Home Depot deals and prices

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