Skip to content
FREE SHIPPING ON ORDERS OVER $100 (exclusions apply)
(exclusions apply)

30131 OATEY H-205 Water Soluble Flux, 4 oz.

SKU 30131
Sale Sale
Original price $4.63
Original price $4.63 - Original price $4.63
Original price $4.63
Current price $3.86
$3.86 - $3.86
Current price $3.86
9 in stock, ready to be shipped

Oatey® 4 oz. H-205 Water Soluble Flux.

Oatey® H-20®5 Paste Flux is a water flushable soldering paste flux designed to clean and flux most commonly soldered metals. 100% lead free. Safe for use on potable water applications. Can be used on copper piping without discoloration. Excellent for large diameter - copper pipe applications.

Safety Data Sheet

Spec Sheet

Inventory Blowout

Once it’s gone, it’s gone!

Don't have what you need?

Please call 800 624-8296 for our customer concierge team, or use our live chat.


  • 100 percent lead-free paste cleans, fluxes and copper piping to provide uniform solder flow
  • Can be used on copper piping without discoloration
  • Compatible with common plumbing solder alloys
  • Effective on most metals, excluding aluminum and stainless steel
  • For warranty product details, refer to the Oatey Limited Warranty document
  • Good for large diameter copper piping
  • Meets ASTM standard B-813
  • NSF standard 14 (Performance) and standard 61 (Health Effects) certified
  • Safe for use in potable water applications
  • Water flushable
  • Specifications

      Size: 4 oz.
      Weight: 0.3 LB
      Brand: Oatey
      Lead: No
      Product Type: Water Soluble
      Color: Yellow

    Request a quote
    Free Shipping*

    When you spend $100+

    Exceptional Pricing

    Open an account today for additional discounts

    Chat or Phone

    U.S Based Customer Concierge Service

    Nationwide Coverage

    Find a Warehouse near you


    This was one of the easiest transactions I have made in a very long time. I for sure will purchase from you again.

    Roy S. | Thomasville, GA

    We have always been taken care of with great respect and efficiency... and our delivery person is always on time and efficient.

    Bev C. | Canton, MI

    The customer service team takes on all questions and concerns diligently and works hard on any projects or concerns.

    Hope B. | Freehold, NJ

    *Free shipping over $100 available nationwide. Excludes hard pipe, and items 10ft+. For such items, the minimum to qualify for free shipping is $2500 if the shipping address is within 200 miles of your nearest American Copper & Brass Distribution Facility, otherwise charges apply.