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Simple Respirometer

Marsoni M251S
Sale price$40.81
Pay 4 payments of $10.20 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Simple RespirometerThe apparatus is designed for comparing rates of absorption or evolution of gases by small organisms, during respiration. The apparatus consists of two stoppered boiling tubes connected by three way taps to either limb of a graduated manometer. One tube holds the organisms and has a syringe for altering the level of liquid in the manometer during setting up. The other tube acts as a control thermobarometer. CO2 given off by the respiring organisms is
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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.
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4.7 ★★★★★
Based on 2120 reviews
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Verified Purchase
dionne
Cuba, US
★★★★★ 5
Glasses
Color: Dark Tortoise, Size: 54/17/140
It’s beautiful I like the glasses wonderful
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026
D
Verified Purchase
Dina P.
Belleville, US
★★★★★ 1
Glassws are too wide
Color: Dark Tortoise, Size: 54/17/140
Glasses are tood wide. No one have been able to ajust these. Up to now I have not been able to wear them. I don't recommend these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
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Verified Purchase
LILIA ROSA CARDENAS NUÑEZ
Belleville, US
★★★★★ 5
divinas mis gafas
Color: Porcini Tortoise, Size: 52-17-140
divinas
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Reviewed in the United States on April 17, 2026
L
Verified Purchase
lojo
Chelsea, US
★★★★★ 4
Cute but not hinged at arms
Color: Porcini Tortoise, Size: 52-17-140
They were cute. I didn’t like that they weren’t hinged. They were harder to open and close. I didn’t look for this feature before I purchased.
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Reviewed in the United States on February 3, 2026
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 5
Anteojos modernos.
Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140, Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140
Mis lentes son muy cómodos, y me gustan como lucen, vienen sin medidas yo los adecué con mi Optometrista. Se aflojan con el tiempo, pero compré una pinza que ajusta los tornillos…realmente lucen como nuevos.
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Reviewed in the United States on January 20, 2026

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