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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
JBL CO2 Direct Test Set RefillSimple and reliable monitoring of the aquarium water values. Determines the optimal carbon dioxide content for freshwater aquariums Application: fill plastic cuvette with sample water, add reagent drop by drop until stable colour change to pink. Number of drops x 2 = CO2 content in mg l To use during periods of poor or no plant growth and fish mortality: once a week You will find detailed information and troubleshooting tips about water analysis on
- Simple and reliable monitoring of the aquarium water values. Determines the optimal carbon dioxide content for freshwater aquariums
- Application: fill plastic cuvette with sample water, add reagent drop by drop until stable colour change to pink. Number of drops x 2 = CO2 content in mg/l
- To use during periods of poor or no plant growth and fish mortality: once a week
- You will find detailed information and troubleshooting tips about water analysis on the JBL website in Essentials/Aquarium
- Package contents: 1 CO2 test incl. 2 reagents, plastic cuvette and colour chart. Reagent refill separately available
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
4.5 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
True to size and very comfortable
Size: 13, Color: Black/Dark Smoke Grey
These are lightweight, running shoes
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Reviewed in the United States on April 7, 2026
★★★★★ 5
good shoes
Size: 8, Color: Black/White/Iron Grey
better than what i estimated. it took a day for θem 2 sink in, letting me feel full eφect.
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Reviewed in the United States on May 7, 2026
★★★★★ 4
son comodos
Size: 9, Color: Black/White/Iron Grey
muy satisfecha con esta compra,
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Reviewed in the United States on April 29, 2026
★★★★★ 5
True to size really nice!
These sweaters are made of good quality. Thicker than I expected in a good way. Love the wrist band. Not sloppy. Snug and crisp fit. Careful though, very true to size. My xl has to be hang dried then fluffed in the dryer. Overall a great pullover.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Great quality, color, look and price! So happy the yellow was back in stock when I purchased
Oh my gosh. I absolutely love this sweater on my 44-year-old son. He loves it as well. He is wearing a size medium in the picture. Great quality, launders as well. He simply washes it in the machine with cold water and then puts it on a hanger to dry. It is one of his faves!
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Reviewed in the United States on March 16, 2026