Lowest Price Found
$372.59
at eBay
Price Comparison
Comparing 3 retailers for the best deal
Prices range $372.59–$424.80 — save up to $52.21 by choosing the right store.
Prices verified 2 days ago(Aug 22, 2026, 3:01 AM)
Product prices and availability are accurate as of Aug 22, 2026, 3:01 AM and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply.
Technical Specifications
Product Details
BrandRheem
ModelRTEX-18
UPC020352685335
EAN0020352685335
CategoryWater Heaters
Frequently Asked Questions
What is the best price for Rheem 18kW 240V Tankless Electric Water Heater?+
The lowest in-stock price right now is $372.59 at eBay. We compare 3 retailers every day so you always see the cheapest current price.
Where can I buy Rheem 18kW 240V Tankless Electric Water Heater?+
Rheem 18kW 240V Tankless Electric Water Heater is currently available at Amazon, eBay, and Walmart. Use the Price Comparison table above to jump straight to the cheapest listing.
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Price Comparison
Comparing 3 retailers for the best deal
eB
eBaySeller listings
In Stock
$372.59Buy at eBay
W
WalmartAt Walmart
In Stock
$424.80Buy at Walmart
A
AmazonAt Amazon
In Stock
Prices verified 2 days ago(Aug 22, 2026, 3:01 AM)
Product prices and availability are accurate as of Aug 22, 2026, 3:01 AM and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply.
Spotted a lower price?
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