SKU: 24978921808

Instant-Flow SR-Low Flow 0.35 GPM Point of Use Electric Tankless Water Heater, 20 Amp, 277-Volt, 5540-Watt

Sale price$175.25 Regular price$194.72
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Instant-Flow SR-Low Flow 0.35 GPM Point of Use Electric Tankless Water Heater, 20 Amp, 277-Volt, 5540-WattThe Instant Flow SR model is a great basic instant water heater for a wide variety of uses. It features a small size, low installation cost, and delivers unlimited hot water. It also meets the ADA requirements and is 99% Energy Efficient. This instant water heater is perfect for lavatories, sinks, showers, and other special applications. California residents see Prop 65 WARNINGS Under the counter, point of use applications Compact design, easy

The Instant-Flow SR model is a great basic instant water heater for a wide variety of uses. It features a small size, low installation cost, and delivers unlimited hot water. It also meets the ADA requirements and is 99% Energy Efficient. This instant water heater is perfect for lavatories, sinks, showers, and other special applications.
  • California residents
  • Under the counter, point of use applications
  • Compact design, easy installation, unlimited hot water
  • Environmentally friendly, saves water and energy - 99% energy efficient
  • Vandal resistant rugged cast aluminum housing, element assembly is fabricated from Celcon plastic, heating coils are chrome
  • Meets ADA requirements and complies with standards for: water conserving product, IAPMO, UL, UPC
  • Applications: commercial, industrial, residential, public lavatories, kitchen sink, bar sink
  • Includes: compression fittings and faucet flow controls
  • Certified for use in portable water applications
  • No pressure and temperature relief valve needed (unless required by code)
  • Meets all CALGreen low flow requirements
  • Unit must be hard wired
  • Model number: SR-20L/277 HTR-I
  • Single phase


Features
Item Weight 4.5
Minimum Temperature (F) 33
Maximum Temperature (F) 160
Heat Exchanger Warranty 1 Year
Application Type Point of Use
Efficiency Level Super High
Pack Size 1
Finish Family White
Returnable 180-Day
Product Weight (lb.) 4.5
Commercial/Residential Commercial,Residential
Wattage (watts) 5540
Required Volt Connection 277 volt
Minimum Activation Rate (gpm) 0.35
Fuel Type Electric
Indoor/Outdoor Indoor
Flow Rate @ 45 F Rise (gallons/min) .84
Wattage (watts)2 5540
Amperage (amps) 20
Flow Rate @ 55 F Rise (gallons/min) .69
Flow Rate @ 35 F Rise (gallons/min) 1.08 gal (US)/min
Water Heater Features No Additional Features
Uniform Energy Factor .99
Flow Rate @ 65 F Rise (gallons/min) .58
Product Height (in.) 6.25
Product Width (in.) 9.625
Product Depth (in.) 2.75
Water Connection Size (in.) 0.375 comp. x 0.25 MP
Part Warranty No Warranty
Labor Warranty No Warranty
Certifications and Listings ADA Compliant,CSA Certified,ETL Classified,IAPMO Certified,UL Listed

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 24978921808

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4.7 ★★★★★
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Riggs
Whiting, US
★★★★★ 5
Fits my 2026 civic sport perfect!
Size: AF151
No issues, fitment is perfect. Great quality for an excellent price. Dealer wanted like $24 for a basic one. Nah I'm good I'll just go on Amazon and get it for $8. Took 30 seconds from start to finish can't get any easier.
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Reviewed in the United States on May 25, 2026
A
Verified Purchase
Ant Farmer 1
Cuba, US
★★★★★ 5
Fits well and installs easily.
Size: AF997
This filter looked about the same as the OEM filter. It installed in about a minute. The quality appeared to be fine. It was protected in a cardboard box. It fit my 2014 Subaru Outback perfectly. I just installed it an hour ago so I don’t have any long term observations about longevity or effectiveness. I can’t see any reason why it would not work as well as the original, it seemed identical.
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Reviewed in the United States on May 29, 2026
N
Verified Purchase
Nicholas K
Charlottesville, US
★★★★★ 5
Great filter
Size: AF259
This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.
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Reviewed in the United States on May 19, 2026
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Great fit and quality
Size: AF113
Not a complicated product, but after going to 2 different auto parts stores and this not being in stock, Amazon to the rescue. Arrived the next day and the quality is definitely on par with “store brand” ones from retailers. Definitely cheaper as well.
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Reviewed in the United States on April 23, 2026
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Verified Purchase
AC
Draper, US
★★★★★ 5
Fit my 2014 Accord perfectly
Size: AF476
Seems to be the same quality as OEM. Fit perfectly. Easy to install.
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Reviewed in the United States on April 24, 2026

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