Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 15 - Jun 20
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Description
Ph down General hydroponic 2.5 gallonsGeneral Hydroponics PRO pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non corrosive and non
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 229 reviews
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Product Reviews
★★★★★ 5
Been doing great since 2020
Used this to replace the charging solenoid on my diesel motorhome. Originally used a White-Rodgers OEM relay and it only lasted about 18 months. This has been going strong since 2020 and I use my motorhome about 10 months out of the year with lots of miles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 2, 2024
★★★★★ 1
Buy something better
This relay has experienced failure again after just a couple of months of use. It's not the mag coil that fails but rather the contacts are of such low quality that they corrode beyond their ability to conduct power, and fast. I have had to change two of these so far and am on the third one. The seller will ship replacements but who wants to keep replacing them? I have to travel in my RV with a spare. This relay has never been exposed to the elements. It's safely mounted inside a sealed bay. Be aware of any brands that look like this, they are all the same.
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Reviewed in the United States on November 15, 2025
★★★★★ 5
Works great
I added extra batteries to run a truck camper without killing my main battery and this works great. Simple to install and i have no had any problems in the pay few months and i use it every single day
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Reviewed in the United States on April 18, 2021
★★★★★ 5
Installed in my RV.
This product works well. It is somewhat difficult to mount. The contact points are a little too close together. These deficiencies are understandable given its low cost and small size.
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Reviewed in the United States on January 18, 2021
★★★★★ 5
Good quality
Used this to relocate my battery to the rear of my longbed truck, flexible and easy to work with
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Reviewed in the United States on March 23, 2026
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