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Home / Aeration Accessories / Air Diffusers / Diffuser Backflow Valve and Coupler
An Airstone Backflow Valve on a white background.

Diffuser Backflow Valve and Coupler

$19.95

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SKU: ARS0455 Categories: Aeration Accessories, Air Diffusers
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Description

Diffuser Backflow Valve

This Backflow Valve is designed to work with Outdoor Water Solutions Airstones and Rubber Membrane Disc Diffusers.

Back Flow Valve for Diffusers

All diffusers, regardless of whether they are ceramic, rubber membrane, or another type of material, should have a backflow valve to prevent water from entering your airline.  If you do get water coming back up your airline, it can cause compressor issues as every time your compressor has to restart; it has to first push the water out of the airline, which requires extra pressure.  Secondly, water in your airline can freeze during the winter months, which means no air comes out, and you put undue stress on your compressor, which can burn up motors and/or break crankshafts and pistons quickly.

This backflow valve comes with 1/2″ female NPT threads on the lower end that threads onto an OWS Airstone or Rubber Membrane Disc Diffuser.   The hose barb end fits 3/8″, 1/,2″, and 5/8″ airline and attaches to both weighted and non-weighted airline with an included stainless steel hose clamp.

What is the difference between an airstone diffuser and a rubber membrane diffuser?

The airstone diffuser and the rubber membrane diffuser both serve the same purpose; they provide aeration for your lake or pond. However, how they do it and what size they work best in is very different. The airstone diffuser can be quite convenient because it can easily be installed. The airstone diffusers can are more affordable, but they provide less oxygen. The rubber membrane is more expensive but offers more oxygen with smaller bubbles.  The airstone diffuser can be ideal for smaller ponds.

The rubber membrane is an ideal solution for bigger ponds. This is because more bubbles are created and transported throughout the water, which makes more oxygen for your aquatic environment. It can also be argued that the airstone diffuser creates about the same amount of oxygen. The airstone diffuser gives off bigger bubbles and a sufficient oxygen level as the bubbles pop. To reiterate, both options are good, but your investment would depend on the price, maintenance frequency, and size of the pond.

Additional information

Weight 0.50 lbs
Barb Diameter

3/8" & 1/2", 5/8"

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      • Home
      • About
      • Products
        • Aeration Windmills
          • 3 Legged Windmills
          • 4 Legged Windmills
          • 24 Foot Windmills
          • Powder Coat Windmills
          • Wood Windmills
          • Windmill Heads
        • Decorative Windmills
          • Backyard Windmills
          • Full Size Ornamental Windmills
        • Fountains
          • Aerating Fountains
          • Display Fountains
          • Solar Fountains
        • Aeration
          • Electric Aerators
          • Surface Aerators
          • Solar Aerators Direct Drive
          • Solar Aerators Battery Back Up
        • Pond Treatments
          • Algae & Weed Control
          • Bacteria Packs & Clarifiers
          • Pond Dye
          • Rakes & Cutters
          • Pond Packs
          • Pond Sealants
        • Fish Care
          • Fish Attractors & Fish Habitats
          • Fish Feeders
          • Predator Control
          • Fish & Turtle Traps
        • Dock Kits & Lights
          • Dock Packages
        • Accessories
          • Air Diffusers
          • Airline & Connectors
          • Windmill Accessories
          • Aeration Accessories
          • Fountain Accessories
          • Other Accessories
        • Maintenance & Parts
          • Windmill Parts
          • Fountain Parts
          • Backyard Windmill Parts
          • Electric Aerators Parts
          • Solar Aerators Parts
        • De-Icers
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        • Systems Under $2000
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