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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Diffuser/Airstone Backflow ValveBack Flow Valve for DiffusersAll diffusers regardless of whether they are ceramic, rubber membrane or other type of material should have a back flow 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
Back Flow Valve for DiffusersAll diffusers regardless of whether they are ceramic, rubber membrane or other type of material should have a back flow 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 pressure 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. Please let us know in the comment section if you need an adapter for 3/8" threads and we'll supply that at no extra charge. 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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.0 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Good producers.
Very sad, but realistic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 11, 2025
★★★★★ 5
Amazon eGift Card Makes a Great Gift and So Easy to Give
Denomination: 0, Design Name: You're the best. (Animated)
I was so thankful that I could get this gift card on the Amazon website because I just had back surgery and I couldn't get out to the store to get my daughter something for helping me for a week. I just really wanted to show her my appreciation for everything she had done. I didn't know that you could do this and then I Googled it and it said I could. It was so effortlessly and so easy to do. I definitely will be doing this in the future now that I know how well it went.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Always so good for those oops I forgot a special day, quick and easy!!
Denomination: 0, Design Name: Papercut Hearts (Animated)
The ecard works so will with last minute ideas. Just seems USPS and cost for mailing is of the past.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Safe & Easy
Denomination: 0, Design Name: Award Winning (Animated)
Definity easy and perfect when you have no idea for a giving a gift $$$ WORKS
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Perfect Gift
Denomination: 0, Design Name: Award Winning (Animated)
Easy to pay for, easy to give.
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Reviewed in the United States on April 16, 2026