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KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L

The KISSLER 88-4115 Water Heater Supply Line is a 24-inch, 3/4-in. by 3/4-in. flexible copper pipe sold for $21.25, designed to connect a water heater’s inlet and outlet to the home’s plumbing, delivering reliable, leak-free flow for residential installations.

$21.25

● In stock

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Price and availability may change. Click to see current details on Newegg.

Key features

  • 24-inch length for typical residential runs
  • 3/4-in. x 3/4-in. size fits standard heater fittings
  • Copper core resists corrosion and scale
  • Flexible construction eases installation
  • Rated for up to 180 °F hot-water temperatures
  • Meets residential plumbing code requirements
  • Compact design for tight spaces

Pros

  • +Copper material resists corrosion
  • +Flexible yet durable for easy routing
  • +Standard size fits most water heaters
  • +Affordable price for quality material
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Cons

  • Limited to 24-inch length; longer runs need additional fittings
  • Not suitable for high-pressure commercial systems

About KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L

What is KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L?

The KISSLER 88-4115 is a 24-inch flexible supply line made of copper, sized 3/4-in. by 3/4-in., intended for water-heater connections in residential plumbing systems. Its construction meets industry standards for durability and corrosion resistance, ensuring a long-lasting, leak-free joint between the heater and the house water supply.

Key features

  • Length — 24 inches provides ample reach for most installations.
  • Size — 3/4-in. by 3/4-in. matches standard water-heater fittings.
  • Material — Copper core offers superior corrosion resistance.
  • Flexibility — Flexible design eases routing around obstacles.
  • Temperature rating — Handles typical hot-water temperatures up to 180 °F.
  • Compliance — Meets applicable plumbing codes for residential use.

Who is KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L for?

Homeowners, DIY renovators, and professional plumbers who need a reliable, code-compliant supply line for electric or gas water heaters will find this product a practical choice. Its standard dimensions fit most mid-size residential heaters.

How does KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L compare?

Compared with generic steel or PVC lines, the KISSLER copper line offers better heat conductivity, longer lifespan, and easier installation due to its flexibility. While slightly pricier than basic alternatives, its durability and leak-resistance often offset the initial cost.

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Best use cases

  • Connecting a new tank-type water heater to existing plumbing
  • Replacing a leaky supply line in an older home
  • Upgrading from PVC to copper for better heat transfer
  • Installing a water heater in a tight crawl-space
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Is KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L right for you?

Buy the KISSLER 88-4115 if you have a standard 3/4-in. water-heater inlet and outlet and need a 24-inch flexible line. It suits DIY enthusiasts with basic plumbing tools and professional installers seeking a reliable copper option. For longer runs, consider adding extra fittings; for larger commercial units, look for higher-pressure rated lines.

How it compares: When compared to steel braided or PVC supply lines, the KISSLER copper line offers superior corrosion resistance and flexibility, though it is limited to standard residential pressure ratings. PVC is cheaper but less durable, while steel provides higher pressure tolerance at a higher cost.

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Frequently Asked Questions

What size is the KISSLER 88-4115 supply line?

The line measures 3/4-in. by 3/4-in., a common size that matches most residential water-heater connections, and it is 24 inches long, providing enough reach for typical installations.

Does the KISSLER supply line require special tools?

Installation only needs standard plumbing tools such as a wrench and pipe cutter. The flexible copper construction allows easy positioning without the need for specialized equipment.

How does the copper material benefit the water heater?

Copper conducts heat efficiently, helping maintain water temperature while resisting corrosion and scale buildup, which extends the lifespan of both the line and the water heater.

Is the KISSLER line compatible with both electric and gas heaters?

Yes, the 3/4-in. size and temperature rating up to 180 °F make it suitable for both electric and gas water heaters used in typical residential settings.

Can I use the KISSLER line for a replacement in an older home?

Absolutely. Its flexible design and standard dimensions make it an ideal replacement for aging or leaking supply lines in older plumbing systems, provided the existing fittings are 3/4-in.

How much does KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L cost?

KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L is $21.25 at Newegg. Prices may change — click through to Newegg for the latest.

Is KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L in stock at Newegg?

Yes, KISSLER 88-4115 Water Heater Supply Line,3/4x3/4,24in. L is currently in stock at Newegg.

Specifications

Product Type
Household Appliance Accessories~~Water Heater Accessories
Category
Home & Garden
SKU
9SIA5D5CR35546
Last updated Aug 24, 2026